Exclusive Mastery

Most Mastery-rewarding items can be directly bought, built, or researched. However the following items had a limited distribution period or were removed from circulation entirely.
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Market Retired =
Acquisition: Events or Special Alerts
These items were once available from the Market but have since been removed. They cannot be traded, but may rarely appear as rewards for Events or Tactical Alerts.
Item 	Count 	Mastery
 	Primary	3,000
Total:	1 	3,000
|-|Founders Pack =
Acquisition: None
These items were part of the Founders Program, rewarding those who donated during the crucial early stages of the game. They cannot be traded and will never be offered again.
Item 	Count 	Mastery
 	Warframe 	6,000
 	Secondary	3,000
 	Melee 	3,000
Total:	3 	12,000
|-|Nightwave =
Acquisition: Wolf Beacon and Nightwave Offerings
 is only obtainable by killing the Wolf of Saturn Six. He spawned during the Nightwave/Series 1 and can now only spawn with a Wolf Beacon. is only obtainable by killing Nihil after purchasing the Nihil's Oubliette decoration and the Enter Nihil's Oubliette Key.
Item 	Count	Mastery
 	Melee	3,000
 	Melee	3,000
Total:	2 	6,000
|-|Event Reward =
Acquisition: Events, Special Alerts, or Celebrations
These items can appear as rewards for Events, Tactical Alerts, or celebratory periods. Their parts and/or blueprints can be traded except for all Dex Weapons, both Plague Zaw Strikes, and the .
Item 	Count 	Mastery
 	Primary 	3,000
 	Arch-Gun 	3,000
 	Secondary 	3,000
 	Melee 	3,000
 	Primary 	3,000
 	Zaw Strike	3,000
 	Zaw Strike	3,000
* 	Primary 	3,000
 	Primary 	3,000
 	Melee 	3,000
 	Melee 	3,000
Total:	11 	33,000
:* Opticor Vandal can also be purchased from Baro Ki'Teer, which has the only tradeable version
|-|Void Trader =
Acquisition: Purchase or Trade
These items can occasionally appear with Baro Ki'Teer's merchandise. Unranked weapons can be traded.
Item 	Count 	Mastery
 	Secondary 	3,000
 	Primary 	3,000
 	Primary 	3,000
 	Arch-Melee 	3,000
 	Melee 	3,000
 	Melee 	3,000
 	Primary 	3,000
 	Melee 	3,000
 	Melee 	3,000
 	Melee 	3,000
 	Primary 	3,000
 	Companion 	6,000
* 	Robotic Weapon	3,000
 	Primary 	3,000
‡	Secondary 	3,000
 	Primary 	3,000
 	Melee 	3,000
 	Secondary 	3,000
 	Secondary 	3,000
 	Primary 	3,000
 	Secondary 	3,000
‡	Secondary 	3,000
 	Primary 	3,000
 	Secondary 	3,000
 	Primary 	3,000
 	Arch-Gun 	3,000
 	Melee 	3,000
 	Melee 	3,000
 	Melee 	3,000
 	Melee 	3,000
Total: 	30 	93,000
:* 	Prisma Burst Laser is included with Prisma Shade when purchased from Baro, but the items are separate when traded with other players.
:‡ 	Aklex Prime and Akvasto Prime cannot be purchased directly. Aklex Prime parts can be obtained through Axi A2 Relics, and Akvasto Prime parts can be obtained through Axi A5 Relics, both of which are exclusively sold by Baro Ki'Teer.
|-|Daily Tribute =
Acquisition: Daily Tribute system
These weapons are available from the daily tribute system at milestones 100, 300, 500 & 700
Item 	Count 	Mastery
 	Secondary	3,000
 	Melee 	3,000
 	Primary 	3,000
* 	Melee 	3,000
Total:	4 	12,000
:* Sigma & Octantis will only be available from Day 300
|-|Prime Vault =
Acquisition: Legacy Relics, Trade, or Prime Vault Access
Relics containing their parts have been placed in the Prime Vault, no longer appearing in drop tables. However their parts and relics can be traded or used normally. These items are available on a random rotating schedule through the Prime Resurgence system.
Item 	Count 	Mastery
 	Warframe 	6,000
 	Primary 	3,000
 	Melee 	3,000
 	Warframe 	6,000
 	Primary 	3,000
 	Melee 	3,000
 	Warframe 	6,000
 	Secondary 	3,000
 	Melee 	3,000
 	Warframe 	6,000
 	Primary 	3,000
 	Melee 	3,000
 	Warframe 	6,000
 	Melee 	3,000
 	Companion 	6,000
* 	Sentinel Weapon	3,000
 	Warframe 	6,000
 	Primary 	3,000
 	Secondary 	3,000
 	Warframe 	6,000
 	Archwing 	6,000
 	Warframe 	6,000
 	Primary 	3,000
 	Companion 	6,000
† 	Sentinel Weapon	3,000
 	Warframe 	6,000
 	Melee 	3,000
 	Warframe 	6,000
 	Secondary 	3,000
 	Melee 	3,000
 	Warframe 	6,000
 	Primary 	3,000
 	Melee 	3,000
 	Warframe 	6,000
 	Secondary 	3,000
 	Companion 	6,000
‡	Sentinel Weapon	3,000
 	Warframe 	6,000
 	Primary 	3,000
 	Melee 	3,000
 	Warframe 	6,000
 	Secondary 	3,000
 	Melee 	3,000
 	Warframe 	6,000
 	Secondary 	3,000
 	Melee 	3,000
 	Warframe 	6,000
 	Primary 	3,000
 	Melee 	3,000
 	Warframe 	6,000
 	Secondary 	3,000
 	Melee 	3,000
 	Warframe 	6,000
 	Primary 	3,000
 	Melee 	3,000
 	Warframe 	6,000
 	Secondary 	3,000
 	Melee 	3,000
 	Warframe 	6,000
 	Primary 	3,000
 	Melee 	3,000
 	Warframe 	6,000
 	Primary 	3,000
 	Melee 	3,000
 	Warframe 	6,000
 	Melee 	3,000
 	Companion 	6,000
§ 	Sentinel Weapon	3,000
 	Warframe 	6,000
 	Primary 	3,000
 	Secondary 	3,000
 	Warframe 	6,000
 	Primary 	3,000
 	Melee 	3,000
 	Warframe 	6,000
 	Primary 	3,000
 	Melee 	3,000
 	Warframe 	6,000
 	Secondary 	3,000
 	Melee 	3,000
Total: 	80 	333,000
:* 	Prime Laser Rifle is included with Wyrm Prime and cannot be obtained separately.
:† 	Sweeper Prime is included with Carrier Prime and cannot be obtained separately.
:‡ Deconstructor Prime is included with Helios Prime and cannot be obtained separately.
:§ Deth Machine Rifle Prime is included with Dethcube Prime and cannot be obtained separately.
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Category:Mastery