Light of Promise + Trostani, Selesnya's Voice + Scurry Oak

Prerequisites

• Light of Promise attached to Scurry Oak.
• You have a way to gain life.

Steps

1. 1Gain any amount of life.
2. 2Light of Promise triggers, putting a number of +1/+1 counters on Scurry Oak equal to the amount of life gained.
3. 3Scurry Oak triggers, creating a 1/1 Squirrel creature token.
4. 4The Squirrel enters the battlefield, triggering Trostani, causing you to gain 1 life.
5. 5Repeat from step 2.

Effects

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