Vigor + Conductor of Cacophony + Crystalline Crawler

Vigor

Conductor of Cacophony

Crystalline Crawler

How it works

1. Activate Conductor of Cacophony by paying and removing a +1/+1 counter from it, dealing 1 damage to each player and to each creature opponents' control and putting a +1/+1 counter on each creature you control.
2. Activate Crystalline Crawler's first activated ability by removing a +1/+1 counter from it, adding .
3. Repeat until you have one life remaining.