Mayael's Aria + Colossus of Akros

Mayael's Aria

Colossus of Akros

How it works

1. At the beginning of your upkeep, Mayael's Aria triggers.
2. Holding priority, activate Colossus of Akros by paying 10, putting ten +1/+1 counters on it and causing it to become monstrous.
3. Resolve the Mayael's Aria trigger, causing you to put a +1/+1 counter on each creature you control, gain ten life, and win the game.