Nim Deathmantle + Ashnod's Altar + Headless Rider

Prerequisites

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Steps

1. 1Activate Ashnod's Altar by sacrificing Headless Rider, adding .
2. 2When Headless Rider dies, it and Nim Deathmantle trigger,
3. 3Resolve the Headless Rider 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 Headless Rider from your graveyard to the battlefield and attach Nim Deathmantle to it.
6. 6Repeat.

Effects

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