Strength of Will + Triskelion + Winding Constrictor

Strength of Will

Triskelion

Winding Constrictor

How it works

1. Cast Strength of Will by paying 1, targeting Triskelion.
2. Activate Triskelion by removing a +1/+1 counter from it, dealing 1 damage to it.
3. Triskelion triggers, putting two +1/+1 counters on it due to Winding Constrictor.
4. Activate Triskelion by removing a +1/+1 counter from it, dealing 1 damage to any target.
5. Repeat from step 2.

This clever loop starts when you target Triskelion with Strength of Will, granting it indestructible and the ability to grow when dealt damage. Because Winding Constrictor is on the battlefield, any counters put on Triskelion—including the ones generated by Strength of Will whenever it takes damage—are increased by one. By having Triskelion shoot itself for one damage, Strength of Will triggers to place a base of one counter, which Winding Constrictor bumps up to two. You can then spend one of those newly minted counters to shoot an opponent while keeping the growth going, generating infinitely large creatures and infinite damage.