Metastatic Evangel, Evolution Witness, and Walking Ballista

Prerequisites

• Metastatic Evangel on the battlefield
• Evolution Witness on the battlefield
• Walking Ballista in hand

Steps

1. Cast Walking Ballista by paying
2. Walking Ballista enters and dies as a state-based action due to having 0 toughness
3. Metastatic Evangel triggers, causing you to proliferate and put a +1/+1 counter on Evolution Witness
4. Evolution Witness triggers, returning Walking Ballista from your graveyard to your hand
5. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite death triggers
• Infinite storm count
• Infinite proliferate