Archangel of Thune, Prosperous Innkeeper, and Herd Baloth

Prerequisites

• Archangel of Thune on the battlefield
• Prosperous Innkeeper on the battlefield
• Herd Baloth on the battlefield

Steps

1. Gain life
2. Archangel of Thune triggers, putting a +1/+1 counter on each creature you control
3. Herd Baloth triggers, creating a creature token
4. When the creature token enters the battlefield, Prosperous Innkeeper triggers, causing you to gain 1 life
5. Repeat from step 2

Results

• Infinite ETB
• Infinite lifegain triggers
• Infinite lifegain
• Infinite creature tokens
• Infinite +1/+1 counters