Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight + Pyreheart Wolf + Yahenni, Undying Partisan

Prerequisites

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Steps

1. 1Activate Yahenni by sacrificing Pyreheart Wolf
2. 2When Pyreheart Wolf dies, its undying ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
3. 3Resolve the Yahenni ability.
4. 4Activate Yahenni by sacrificing Pyreheart Wolf
5. 5When Pyreheart Wolf dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
6. 6Pyreheart Wolf 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 Yahenni ability from step 4.
8. 8Repeat from step 4.

Effects

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