Document:

<PAGE>

                                                                   Exhibit 10.18

[Imagictv logo]
                                                              September 19, 2000

                             SHARE PURCHASE WARRANTS

               Exercisable to Acquire Class A Voting Common Shares

                                       of

                                  IMAGICTV INC.
            (Incorporated under the Canada Business Corporations Act)

THIS IS TO CERTIFY THAT, for value received, Aliant Horizons Inc. (the "holder")
is the registered holder of 287,404 share purchase warrants ("Warrants") of
ImagicTV Inc. ("ImagicTV") and is thereby entitled, without payment of any
additional consideration, to be issued a number of fully paid and non-assessable
Class A voting common shares in the capital of ImagicTV ("Common Shares") for
each Warrant held determined on the following basis (subject to adjustment as
provided herein): (A) if ImagicTV completes a private placement of Common Shares
to investors (other than current shareholders) (the "Outside Investor Round
Private Placement") prior to the Expiry Time (as hereinafter defined), the
holder will receive a number of Common Shares per Warrant equal to US $14.20
divided by the price per share paid by subscribers in the Outside Investor Round
Private Placement, or (B) if the Outside Investor Round Private Placement is not
completed prior to the Expiry Time, the holder will receive one Common Share per
Warrant. The Warrant may be exercised by surrendering to ImagicTV at its address
as provided herein prior to the Expiry Time, this Warrant Certificate, with a
notice of exercise in the form set forth in Appendix 1 annexed here duly
completed and executed.

Surrender of this Warrant Certificate will be deemed to have been effected only
on personal delivery thereof to, or, if sent by mail or other means of
transmission, on actual receipt thereof by ImagicTV at its address as provided
herein.

The Warrants evidenced by this Warrant Certificate may be exercised by the
holder until 5:00 p.m. (Saint John, New Brunswick time) (the "Expiry Time") on
the earlier of (i) the date of the completion of the Outside Investor Round
Private Placement, and (ii) September 29, 2000, provided that if such Warrants
have not been exercised by the Expiry Time, such Warrants will be deemed to have
been exercised by the holder (without any further action on the part of the
holder or ImagicTV) immediately prior to the Expiry Time. Warrant Certificates
may thereafter be surrendered in exchange for certificates representing Common
Shares to which the holder is entitled.

On and after the date of any exercise or deemed exercise of the Warrants
evidenced by this Warrant Certificate, the holder will have no rights hereunder
except to receive a certificate representing the Common Shares thereby issued to
the holder upon surrender of this Warrant Certificate to ImagicTV at its address
as provided herein.

ImagicTV will not be obligated to issue any fraction of a Common Share on the
exercise or deemed exercise of Warrants. To the extent that a holder of Warrants
would otherwise have been entitled to acquire a fractional number of Common
Shares, the number of Common Shares which such holder is entitled to receive
shall be rounded down to the prior whole number.

  THE SECURITIES REPRESENTED HEREBY AND THE SECURITIES ISSUABLE UPON EXERCISE
  THEREOF HAVE NOT BEEN AND WILL NOT BE REGISTERED UNDER THE SECURITIES ACT OF
  1933, AS AMENDED (THE "U.S. SECURITIES ACT") OR UNDER ANY STATE SECURITIES
  LAWS. THE SECURITIES REPRESENTED HEREBY MAY NOT BE OFFERED, SOLD OR OTHERWISE
  TRANSFERRED TO A U.S. PERSON OR A PERSON IN THE UNITED STATES. AS USED HEREIN,
  THE TERMS "UNITED STATES" AND "U.S. PERSON" HAVE THE MEANINGS ASCRIBED TO THEM
  IN REGULATION S UNDER THE U.S. SECURITIES ACT.

  Any notice, direction or other communication required or permitted to be given
  under this Warrant Certificate shall be in writing and shall be given by
  facsimile transmission, with confirmation to follow by first class mail,
  addressed as follows: (i) if to ImagicTV, at:

           ImagicTV Inc.
           One Brunswick Square, 14th Floor
           Saint John, New Brunswick E2L 3Y2

           Attention:   Chief Financial Officer
                        Facsimile No.: (506) 631-3001

  or, (ii) if to the holder, at its address in the register of holders of
  Warrants or other records maintained by ImagicTV.

  Any notice, direction or other communication aforesaid shall, if delivered, be
  deemed to have been given and received on the day it was delivered, and if
  sent by facsimile transmission shall be deemed to have been given or received
  on the next Business Day following the day on
<PAGE>

  which it was so sent. The holder and ImagicTV may at any time give to the
  other notice in writing of any change of address, and from and after the
  giving of such notice the address therein specified shall be deemed to be the
  address of the holder or ImagicTV, as the case may be, for the purposes of
  giving notice hereunder. Any change of address notice shall include a contact
  number for the sending of notices by telecommunication hereunder. "Business
  Day" means a day, other than a Saturday or Sunday, or public holiday in the
  Province of New Brunswick.

  All references to currency mean United States of America currency.

  A reference to an entity includes any entity that is a successor to such
entity.

The holding of the Warrants evidenced by this Warrant Certificate shall not
constitute the holder thereof a shareholder of ImagicTV or entitle the holder to
any right or interest in respect thereof.

If any provision of this Warrant is or shall become illegal, invalid or
unenforceable, in whole or in part, the remaining provisions shall nevertheless
be and remain valid and subsisting, and the said remaining provisions shall be
construed as if this Warrant had been executed without the illegal, invalid or
unenforceable portion.

This Warrant shall be construed and governed by the laws in force in the
Province of New Brunswick, and the courts of said Province shall have exclusive
jurisdiction to hear and determine all disputes arising hereunder. ImagicTV and
the holder irrevocably attorn to the jurisdiction of said courts. This paragraph
shall not be construed to affect the rights of the holder to enforce a judgment
or award outside the said Province.

On presentation to ImagicTV at its address as provided herein, subject to the
provisions hereof, the terms of the Unanimous Shareholders Agreement and the
Operating Agreement of ImagicTV, each dated as of December 17, 1999 and on
compliance with applicable laws the Warrant Certificate may be exchanged at no
cost to the holder for one or more Warrant Certificates of different
denominations evidencing in the aggregate the same number of Warrants as the
Warrant Certificate being exchanged.

This Warrant is not transferable by the holder except with the written consent
of a majority of the directors of ImagicTV. ImagicTV will be entitled, to refuse
to record any transfer of any Warrant if such transfer would constitute a
violation of the laws of any jurisdiction.

The Common Shares issuable upon the exercise of the Warrants will be subject to
statutory resale restrictions under the applicable securities legislation. In
addition, statutory restrictions may apply to the resale of such Common Shares
by the securities regulatory authorities in applicable jurisdiction. Purchasers
are advised to consult their own legal advisors in this regard.

IN WITNESS WHEREOF ImagicTV Inc. has caused this Warrant Certificate to be
signed by its officer or other individual duly authorized in that behalf as of
September 19, 2000.

                                             IMAGICTV INC.

                                          By /s/ Sue MacQuarrie
                                          ---------------------
                                          Name: Sue MacQuarrie
                                          Title: Corporate Secretary
<PAGE>

                                  APPENDIX 1
                                  ----------

                              NOTICE OF EXERCISE
                              ------------------

To:  IMAGICTV INC. ("ImagicTV")

The undersigned holder of the Warrants evidenced by the within Warrant
Certificate hereby exercises its right to be issued Common Shares (or such other
securities or property to which such exercise entitles him in lieu thereof or in
addition thereto under the provisions of the Warrant Certificate) that are
issuable upon the exercise of such Warrants, on the terms specified in such
Warrant Certificate.

The  undersigned  hereby  acknowledges  that it is aware that the Common  Shares
received on exercise will be subject to restrictions on resale under  applicable
securities legislation.

The undersigned hereby irrevocably directs that the said Common Shares be
issued, registered and delivered as follows:

<TABLE>
<CAPTION>
Name(s) in Full            Address(es)                        Number(s) of Common Shares
<S>                        <C>                                <C>

________________           _____________________________      ___________________________________

________________           _____________________________      ___________________________________

________________           _____________________________      ___________________________________
</TABLE>

(Please print full name in which the certificates are to be issued. If any
certificates are to be issued to a person or persons other than the holder, the
holder must pay to ImagicTV all exigible transfer taxes or other government
charges and sign the Form of Transfer.)

DATED this      day of September, 2000.
Witness                                   )
                                          )
___________________________________       )    ________________________________
                                          )    Signature of Registered Holder
                                          )
___________________________________       )    ________________________________
                                               Name of Registered Holder

  Note:      The name of the Registered Holder on this Notice of Exercise must
             be the same as the name appearing on the face page of the Warrant
             Certificate to which this Notice of Exercise is attached.<PAGE>

                                                                   EXHIBIT 10.18

                           ASSET PURCHASE AGREEMENT

     THIS ASSET PURCHASE AGREEMENT is entered into as of this 15th day of May,
2000, by and between CARBITE, INC., a California corporation, (hereinafter
referred to as "Carbite"), CARBITE GOLF, INC., a British Columbia corporation,
and CARIZMA GOLF COMPANY, a California corporation (hereinafter referred to as
"Carizma").

     WHEREAS, Carizma is a manufacturer and distributor of golf products;

     WHEREAS, Carbite is a manufacturer and distributor of golf products and is
a wholly-owned subsidiary of Carbite Golf, Inc.:

     WHEREAS, Carbite has agreed to purchase certain assets of Carizma;

     NOW, THEREFORE, in consideration of the mutual covenants and undertakings
set forth below, the parties hereto agree as follows:

1. Purchase and Sale of Assets.
   ---------------------------

     A.   Carbite agrees to purchase and Carizma agrees to sell, transfer, and
          assign, the assets of Carizma set forth in Schedule A hereto (the
          "Assets").

     B.   Carizma shall take all steps necessary to enable it to provide Carbite
          good and marketable title to all the Assets, free and clear of all
          liens, mortgages, encumbrances, equities or claims.

     C.   On or before May 15, 2000, Carizma shall provide to Carbite:

               (i)    possession of the Assets

               (ii)   all deeds of conveyance, bills of sale, transfers and
                      assignments in form and content satisfactory to Carbite
                      appropriate to effectively vest a good and marketable
                      title to the Assets in Carbite free and clear of all
                      Liens;

               (iii)  all consents, approvals, assignments or other instruments
                      necessary to assign to and perfect Carbite's interest in
                      the Intellectual Property Rights and to maintain the
                      registration or recording of those rights.

               (iv)   certified copies of such resolutions of the directors
                      and/or officers of Carizma as are required to be passed to
                      authorize the execution, delivery and implementation of
                      this Agreement.

2. Issuance of Common Shares of Carbite Golf, Inc.
   ----------------------------------------------

     A.   Carbite Golf, Inc. shall issue to Carizma or its assignee 792,632
          common shares in the capital stock of Carbite Golf, Inc. at a deemed
          price per share of $0.38.

     B.   Such issuance of shares shall be subject to regulatory approval by the
          Canadian Venture Exchange and Carbite and Carbite Golf, Inc. shall use
          their best efforts to expeditiously secure such approval. Such shares
          shall be subject to the one-year hold period required by the Canadian
          Venture Exchange and shall bear a Rule 144 legend.
<PAGE>

3.   Bonus Payment.
     -------------

          A.   For a period of five (5) years from the date of this Agreement,
               Carbite shall pay to Carizma a bonus payment of $2.00 on each net
               unit sold (gross units sold less returns) of Putterballs and
               $7.50 on each net unit sold (gross units sold less returns) of
               Power Ti-Pods which shall be due and payable to Carizma within
               sixty (60) days after Carbite receives payment from its customer
               on such sales.

          B.   Carbite shall pay to golf professional, Fred Gibson, $1.00 on
               each net unit sold (gross units sold less returns) of Putterballs
               from the date of this Agreement through October 20, 2001.

          C.   If the aggregate bonus payments to Carizma at any time during the
               five-year period exceed $220,000, the rate of the bonus payment
               for the remainder of the period shall be reduced to $1.50 on the
               Putterball and $5.00 on the Power Ti-Pods.

          D.   Carbite shall use its best efforts to sell the Putterballs and
               Power Ti-Pods transferred under this Agreement, but shall not be
               subject to any minimum number of sales.

          E.   The bonus payment shall not be payable on items distributed
               without charge for samples, marketing, or promotional purposes.

          F.   Within thirty (30) days following the end of every other month.
               Carbite shall provide Carizma a written statement setting forth
               the bonus payments earned in the preceding sixty (60) days. The
               first such statement shall be delivered on or before August 31,
               2000.

          G.   Carizma shall have the right, upon ten (10) days written notice,
               to inspect the sales records of Carbite relating to the Power Ti-
               Pods and Putterball.

4.   Private Placement.
     -----------------

          On or before May 30, 2000, Carizma shall tender or cause to be
          tendered to Carbite a private placement of $400,000 for common shares
          at a deemed price of $0.38 per share and share purchase warrants (a
          "Unit") in the capital stock of Carbite Golf, Inc. Each Unit shall
          consist of one common share and one-quarter of one share purchase
          warrant, which share purchase warrant shall have an expiry date of
          two (2) years from the date of subscription and the exercise price of
          such share purchase warrants shall be $0.38 per share.

5.   Representation and Warranties.
     -----------------------------

          A.   Carizma represents and warrants that:

                                       2
<PAGE>

        (i)   Carizma is a corporation duly incorporated pursuant to the laws of
              the State of California and the legal and beneficial owner of the
              Assets and has the due right, power and corporate authority to
              transfer the Assets to Carbite;

        (ii)  the Assets are of good and merchantable quality and are free and
              clear of any and all mortgages, security interests or other
              encumbrances;

        (iii) Carizma is not party to or bound by any express or implied product
              warranties or representations or product guarantees other than
              those warranties, if any, implied by law.

        (iv)  As to the Intellectual Property Rights, Carizma also represents
              and warrants that:

              a. none of the Intellectual Property Rights are subject to any
                 outstanding order, judgment, decree, stipulation or agreement
                 restricting the use thereof by Carizma or restricting the sale
                 or licensing thereof by Carizma to any person;

              b. Carizma has no knowledge that would cause a person to believe
                 that the use of the Intellectual Property Rights conflicts
                 with, infringes upon or violates any trademark, trade name,
                 trademark or trade name registration, service mark, brand mark
                 or brand name or any pending application relating thereto, or
                 any trade secret, know-how, programs or processes, or any
                 similar rights, of any person;

              c. all registrations and filings necessary to preserve the rights
                 of Carizma in and to the Intellectual Property Rights have been
                 made.

        (v)   The values listed for the Assets in Schedule A are not the lower
              of cost or fair market value.

B.   Carbite, Inc. represents and warrants that it is a corporation duly
     incorporated and validly existing and in good standing under the laws of
     the State of California, that it has the power and capacity to enter into
     this Agreement and carry out its terms, and that the Agreement has been
     duly and validly authorized by all necessary corporate action on the part
     of Carbite.

C.   Carbite Golf, Inc. represents and warrants that:

        (i)   It is a corporation duly incorporated, validly existing and in
              good standing under the laws of British Columbia, that it has the
              power and capacity to enter into this Agreement and carry out its
              terms, and that the Agreement has been duly and validly authorized
              by all necessary corporate action on the part of Carbite Golf,
              Inc.

                                       3
<PAGE>

               (ii)   It is a reporting issuer in the Province of British
                      Columbia and listed on the Canadian Venture Exchange.

6.  Indemnities.
    -----------

     A.   Carizma agrees to indemnify and save harmless Carbite and Carbite
          Golf, Inc. from and against any and all losses, claims, damages,
          liabilities, and costs incurred or suffered by Carbite or Carbite
          Golf, Inc. (including lost profits, consequential damages, interest,
          penalties, fines, monetary sanctions, attorney fees and costs) by
          reason or resulting from, in connection with, or arising in any manner
          whatsoever out of (i) the breach of any representation, warranty or
          covenant or the inaccuracy of any representation of Carizma contained
          or referred to in this Agreement or in any agreement, instrument or
          document delivered by or on behalf of Carizma in connection therewith
          and (ii) any disputes between Carizma and its shareholders, directors,
          vendors, or any other third parties, specifically including but not
          limited to the pending litigation entitled General Titanium v. Carizma
                                                     ---------------------------
          Golf Company in San Diego County.
          ------------

     B.   Carbite agrees to indemnify and save harmless Carizma from and against
          any and all losses, claims, damages, liabilities, and costs incurred
          or suffered by Carizma (including lost profits, consequential damages,
          interest, penalties, fines, monetary sanctions, attorney fees and
          costs) by reason or resulting from, in connection with, or arising in
          any manner whatsoever out of the breach of any warranty or covenant or
          the inaccuracy of any representation of Carbite contained or referred
          to in this Agreement or in any agreement, instrument or document
          delivered by or on behalf of Carbite in connection therewith.

     C.   Carbite Golf, Inc. agrees to indemnify and save harmless Carizma from
          and against any and all losses, claims, damages, liabilities, and
          costs incurred or suffered by Carizma (including lost profits
          consequential damages, interest, penalties, fines, monetary sanctions,
          attorney fees and costs) by reason or resulting from, in connection
          with, or arising in any manner whatsoever out of the breach of any
          warranty or covenant or the inaccuracy of any representation of
          Carbite Golf, Inc. contained or referred to in this Agreement or in
          any agreement, instrument or document delivered by or on behalf of
          Carbite Golf, Inc. in connection therewith

                                       4
<PAGE>

7.   Regulatory Approval.
     -------------------

          The issuance of shares and warrants in Carbite Golf, Inc. referenced
          in this Agreement are subject to approval by the Canadian Venture
          Exchange and will be subject to the one-year hold period required by
          the Canadian Venture Exchange and shall bear a Rule 144 legend.

8.   Miscellaneous.
     -------------

           A.   Waiver. Any waiver by Carbite of the strict performance by
                ------
                Carizma of the covenants herein contained or any failure on the
                part of Carizma to enforce the same shall not extend to or be
                taken in any manner whatsoever to effect a waiver of any
                subsequent or other breach of any such covenant.

          B.   Governing Law. This Agreement shall be construed and enforced in
               -------------
               accordance with the laws of the State of California, U.S.A.

          C.   Arbitration. Should there be a disagreement or a dispute between
               -----------
               the parties hereto with respect to this agreement or the
               interpretation thereof, the same shall be referred to a single
               arbitrator pursuant to applicable arbitration legislation in
               effect in the State of California, U.S.A., and any amendments or
               regulation pertaining thereto, and shall be governed by the rules
               of the American Arbitration Association and in respect of a
               disagreement or dispute, the determination of such arbitrator
               shall be final and binding upon the parties hereto. Each of the
               Parties hereto agrees to bear 50% of the costs of such
               arbitration proceedings and the prevailing party shall be
               entitled to recover reasonable attorneys fees.

          D.   Successors. This Agreement shall inure to the benefit of and be
               ----------
               binding upon the parties hereto and their respective heirs,
               executors, administrators, successors and permitted assigns.

          E.   Notices. All notices, requests, demands, directions, and other
               -------
               communications provided for hereunder shall be deemed to have
               been given, delivered or made if they are in writing and either
               mailed by certified mail, return receipt requested, telegraphed,
               telefaxed, or actually delivered to the applicable party at the
               following address:

                    To Carbite, Inc. or Carbite Golf, Inc.
                         9985 Huennekens Street
                         San Diego, California U.S.A. 92121
                         Telephone: (619) 625-0065 / Fax: (619) 625-0752
                         Attention: Mr. Michael Spacciapolli, President

                                       5

<PAGE>

                    To Carizma Golf Company:
                         1011 Santa Helena, Pk Ct
                         Solana Beach, California U.S.A. 92075
                         Attention: Chuck Jones

                         With a copy to:
                         Ballard Smith:
                         1381 Lick Creek Road
                         McCall, Idaho 83638

          All notices, requests, demands, directions and other communications
          shall be deemed to have been received: when telefaxed, on
          transmission; when mailed, on the third calendar day after being
          deposited in the mail, addressed as described above; and when
          telegraphed or delivered, when actually received.

F.   Entire Agreement. This Agreement contains the entire agreement between the
     ----------------
     parties hereto and no modification of same shall be binding upon the
     parties unless the same is in writing and is signed by the respective
     parties hereto.

G.   Severability. Should any part of this Agreement be declared or held invalid
     ------------
     for any reason, such invalidity shall not affect the validity of the
     remainder which shall continue in force and effect and be construed as if
     this Agreement had been executed without the invalid portion and it is
     hereby declared the intention of the parties hereto that this Agreement
     would have been executed without reference to any portion which may, for
     any reason, be hereafter declared or held invalid.

H.   No Deemed Partnership. Nothing contained in this Agreement shall, except to
     ---------------------
     the extent specifically authorized hereunder, be deemed to constitute
     either party a partner, agent or legal representative of the other party.

I.   Further Assurances. The parties shall promptly execute or cause to be
     ------------------
     executed all documents, deeds, conveyances or any other instruments of
     further assurance which may be reasonably necessary or advisable to carry
     out fully the intent of this Agreement.

J.   Counterparts. This Agreement may be executed in several parts in the same
     ------------
     form and such parts so executed shall together form one original agreement
     and such parts if more than one shall be read together and construed as if
     all the signing parties hereto had executed one copy of this Agreement.

K.   Currency. All references to currency herein are to currency of the United
     --------
     States of America.

                                       6
<PAGE>

     IN WITNESS WHEREOF the parties hereto have executed this Agreement on the
day and year first written above.

CARBITE, INC.

BY: /s/ Michael Spacciapolli
   ---------------------------
Name:  Michael Spacciapolli
Title: President

CARBITE GOLF, INC.

BY: /s/ Michael Spacciapolli
   ---------------------------
Name:  Michael Spacciapolli
Title: President

CARIZMA GOLF COMPANY

BY: /s/ Charles G. Jones
   ---------------------------
Name:  Charles G. Jones
Title: President

                                       7
<PAGE>

                                 SCHEDULE "A"
                                 ------------

                                    ASSETS

1. Golf Products

          11,500 Putterballs @ $12.00
             180 Power Ti-Pods @ $90.00
           7,800 Putters @ 15.00
          Molds and molding equipment

                                                              Valued at $271,200

2. Other

     A. Marketing materials including brochures, print advertisements,
        artwork, shirts, caps and infomercials, 60 second spot and images
        of pro golfer endorsers

     B. Furniture, equipment, computers, storage and display racks

     C. Intellectual Property Rights, specifically including: the names
        and trademarks "Carizma," "Putterball," and "Balorizite",
        the internet URL "carizmagolf.com", and the pending patent on
        the Putterball

                                                              Valued at $ 30,000

                                                        Total Value     $301,200

                                       8

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