Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight + Carrion Feeder + Hancock, Ghoulish Mayor

Prerequisites

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Steps

1. 1Activate Carrion Feeder by sacrificing Hancock
2. 2When Hancock dies, its undying ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
3. 3Resolve the Carrion Feeder ability.
4. 4Activate Carrion Feeder by sacrificing Hancock
5. 5When Hancock dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
6. 6Hancock enters and dies as a state-based action due to having 0 toughness. Its undying ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
7. 7Resolve the Carrion Feeder ability from step 4.
8. 8Repeat from step 4.

Effects

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