Archangel of Thune + Scurry Oak + Prosperous Innkeeper

Prerequisites

• You have a way to gain life.

Steps

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

Effects

• Infinite +1/+1 counters on creatures you control
• Infinite creature tokens
• Infinite ETB
• Infinite lifegain
• Infinite lifegain triggers