Dawnsire, Sunstar Dreadnought + Vigor + Triskelion

Dawnsire, Sunstar Dreadnought

Vigor

Triskelion

How it works

1. Declare any creature as an attacker. Dawnsire triggers, attempting to deal 100 damage to Triskelion, but instead putting 100 +1/+1 counters on it due to Vigor.
2. Activate Triskelion 100 times by removing 100 +1/+1 counters from it, dealing 100 damage divided among any number of targets.

By combining Dawnsire, Sunstar Dreadnought with Vigor, you turn a massive self-inflicted blast into an engine for monstrous growth, transforming the 100 damage that Dawnsire deals upon attacking into 100 +1/+1 counters on Triskelion. Triskelion then serves as the lethal outlet for this exchange, allowing you to convert those freshly gained counters into a barrage of damage directed at any targets you choose.