Mayael's Aria + Wall of Blood

Mayael's Aria

Wall of Blood

How it works

1. At the beginning of your upkeep, Mayael's Aria triggers.
2. Holding priority, activate Wall of Blood by paying 1 life, giving it +1/+1 until end of turn.
3. Repeat step 2 until Wall of Blood's power is equal to nineteen.
4. 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.