Strength of Will + Triskelion + Loading Zone

Strength of Will

Triskelion

Loading Zone

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 Loading Zone.
4. Activate Triskelion by removing a +1/+1 counter from it, dealing 1 damage to any target.
5. Repeat from step 2.

This loop is entirely enabled by Loading Zone, whose replacement effect doubles any counters placed on your permanents, turning a self-inflicted damage trigger into a net gain. When you target Triskelion with Strength of Will, it gains indestructible and the ability to grow when damaged, preventing it from dying as it shoots itself. By removing a counter to deal 1 damage to Triskelion itself, Strength of Will triggers to place a counter back on it—which Loading Zone doubles to two. You can then use the extra counter to shoot any target while keeping the loop going for infinite damage and arbitrarily large +1/+1 counters.