Vigor, Triskelion, and City on Fire

Prerequisites

• Vigor on the battlefield
• Triskelion on the battlefield
• City on Fire on the battlefield
• undefined

Steps

1. Activate Triskelion by removing a +1/+1 counter from it, putting three +1/+1 counters on it due to Vigor
2. Activate Triskelion by removing a +1/+1 counter from it, dealing 3 damage to any target
3. Repeat as desired

Results

• Infinite damage
• Infinite +1/+1 counters