Heliod, Sun-Crowned, and Triskelion

Prerequisites

• Heliod, Sun-Crowned on the battlefield
• Triskelion on the battlefield
• available

Steps

1. Activate Heliod targeting Triskelion, giving it lifelink until end of turn
2. Activate Triskelion by removing a +1/+1 counter from it to deal 1 damage to any target, gaining you 1 life
3. Heliod triggers, putting a +1/+1 counter on Triskelion
4. Repeat from step 2 for infinite damage and lifegain

Results

• Infinite damage
• Infinite lifegain
• Infinite lifegain triggers