Nim Deathmantle + Ashnod's Altar + Harried Spearguard

Prerequisites

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Steps

1. 1Activate Ashnod's Altar by sacrificing Harried Spearguard, adding .
2. 2When Harried Spearguard dies, it and Nim Deathmantle triggers.
3. 3Resolve the Harried Spearguard trigger, creating a 1/1 Rat creature token.
4. 4Activate Ashnod's Altar by sacrificing the Rat, adding .
5. 5Resolve the Nim Deathmantle trigger from step 2, causing you to pay to return Harried Spearguard 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