Light of Promise, and Triskelion

Prerequisites

• Light of Promise on the battlefield
• Triskelion on the battlefield
• Light of Promise attached to Triskelion
• Triskelion has at least one +1/+1 counter on it
• You have a way to give Triskelion lifelink

Steps

1. Give Triskelion lifelink
2. Activate Triskelion by removing a +1/+1 counter from it, dealing 1 damage to any target
3. Triskelion's lifelink ability triggers, causing you to gain 1 life
4. Light of Promise triggers, putting a +1/+1 counter on Triskelion
5. Repeat from step 2

Results

• Infinite damage
• Infinite lifegain
• Infinite lifegain triggers