Mairsil, the Pretender + Pack Rat + Asmodeus the Archfiend + Overeager Apprentice + Training Grounds

Prerequisites

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Steps

1. 1Activate Mairsil using Asmodeus' first ability by paying , causing you to draw seven cards.
2. 2Activate Mairsil using Pack Rat's ability by paying and discarding a card.
3. 3Holding priority, activate Mairsil by discarding a card and sacrificing it, adding .
4. 4Resolve the Mairsil ability from step 2, creating a token copy of Mairsil.
5. 5Repeat from step 2 one additional time.
6. 6Repeat from step 1.

Effects

• Infinite draw triggers
• Near-infinite black mana
• Near-infinite card draw
• Near-infinite creature ETB
• Near-infinite creature LTB
• Near-infinite creature sacrifice triggers
• Near-infinite death triggers
• Near-infinite looting
• Near-infinite self-discard triggers