Nim Deathmantle + Ashnod's Altar + Penumbra Spider

Prerequisites

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Steps

1. 1Activate Ashnod's Altar by sacrificing Penumbra Spider, adding .
2. 2When Penumbra Spider dies, it and Nim Deathmantle trigger,
3. 3Resolve the Penumbra Spider trigger, creating a creature token.
4. 4Holding priority, activate Ashnod's Altar by sacrificing a creature token, adding .
5. 5Resolve the Nim Deathmantle trigger, causing you to pay to return Penumbra Spider from your graveyard to the battlefield and attach Nim Deathmantle to it.
6. 6Repeat.

Effects

• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite death triggers