Mikaeus, the Unhallowed + Carrion Feeder + Carnifex Demon

Prerequisites

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Steps

1. 1Activate Carrion Feeder by sacrificing Carnifex Demon.
2. 2When Carnifex Demon dies, its undying ability triggers, returning it from your graveyard to the battlefield without a +1/+1 counter on it due to its replacement effect.
3. 3Resolve the Carrion Feeder ability
4. 4Repeat.

Effects

• Infinite +1/+1 counters on a creature
• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite death triggers