Vigor + Triskelion + Doubling Season

Vigor

Triskelion

Doubling Season

How it works

1. Activate Triskelion by removing a +1/+1 counter on it, targeting itself, but putting two +1/+1 counters on it due to Vigor.
2. Activate Triskelion by removing a +1/+1 counter on it, dealing 1 damage to any target.
3. Repeat.

This ingenious loop harnesses Vigor's damage-prevention static ability to turn Triskelion's self-inflicted damage into a growing surplus of power, while Doubling Season supercharges the process by doubling every single counter placed onto the battlefield. By using Triskelion to ping itself, Vigor steps in to prevent the damage and instead distributes double the counters thanks to Doubling Season, leaving Triskelion with more than enough fuel to repeat the cycle indefinitely. This creates an endless loop of self-targeting triggers that generates infinite damage for any target and infinitely large creatures you control.