Agatha's Soul Cauldron + Walking Ballista + Young Wolf

Prerequisites

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

Steps

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

Effects

• Infinite death triggers
• Infinite ETB
• Infinite LTB