Volrath, the Shapestealer, Knacksaw Clique, and Sanctum Weaver

Prerequisites

• Volrath, the Shapestealer on the battlefield
• Knacksaw Clique on the battlefield
• Sanctum Weaver on the battlefield
• undefined available

Steps

1. Activate Volrath by paying , causing it to become a copy of Sanctum Weaver
2. Activate Volrath by tapping it, adding at least
3. Activate Volrath by paying , causing it to become a copy of Knacksaw Clique
4. Activate Volrath by paying and untapping it, exiling the top card of an opponent's library with the ability to play it until end of turn
5. Repeat

Results

• Infinite colored mana
• Exile each opponent's library with the ability to play the exiled cards until end of turn