Agatha's Soul Cauldron + Walking Ballista + Pyreheart Wolf

Prerequisites

• Pyreheart Wolf has at least one +1/+1 counter on it.

Steps

1. 1Activate Pyreheart Wolf using Walking Ballista's second ability by removing a +1/+1 counter from it.
2. 2Repeat step 1 until Pyreheart Wolf has no +1/+1 counters on it.
3. 3Resolve all Pyreheart Wolf abilities dealing 1 damage to Pyreheart Wolf, and any remaining damage to any target(s).
4. 4Pyreheart Wolf dies as a state-based action due to having 0 toughness.
5. 5Pyreheart Wolf's undying ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
6. 6Repeat.

Effects

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