Metastatic Evangel, Evolution Witness, and Reckless Barbarian

Prerequisites

• Metastatic Evangel on the battlefield
• Evolution Witness on the battlefield
• Reckless Barbarian on the battlefield

Steps

1. Cast Reckless Barbarian by paying its mana cost
2. When Reckless Barbarian enters, Metastatic Evangel triggers
3. Holding priority, activate Reckless Barbarian by sacrificing it, adding Resolve the Metastatic Evangel trigger, causing you to proliferate and put a +1/+1 counter on Evolution Witness
4. Evolution Witness triggers, returning Reckless Barbarian from your graveyard to your hand
5. Repeat

Results

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