Cheers Card Game

See also: , 
This simple card game is part of the 2021 Juice Festival. 
==Rules==
*Each "deck" has 3 of each card, 1 to 6, plus 1 each of 3 Function cards. At the start of each round (or when a Shuffle card is played) each player draws 7 cards randomly from their deck.
*Function Cards:
**Shuffle - Puts your cards back in the deck, shuffles/randomizes, and draws 7 cards
**Double - Doubles your current score
**Destroy - Removes all cards equal to the value of either players highest-value played card
*Numeric Cards (3 each of values 1 to 6):
**X destroys Y (double the value):
***2 destroys 1, 4 destroys 2, 6 destroys 3, plus a 1 can destroy a 6
*Each round ends when both players Pass
==Advice==
I have learned a few things, the hard way, about playing this simple game.
*Do NOT play a DESTROY card unless you are fairly certain your opponent has played more high-value cards than you have, else you could end up hurting yourself more than him!
*If you have no clear play, play a 5, if you have any, as they cannot be doubled/destroyed, or used to double/destroy other cards.
*Do not DOUBLE until late in the game so your natural total is as high as it can be.
*Save a SHUFFLE as late as you can. This will significantly boost your possible value-in-hand to give you a strong finish.
*If you play a 6 and it is NOT destroyed, it means he does not have any 1s!