Mayael's Aria + Junk Jet

Mayael's Aria

Junk Jet

How it works

1. At the beginning of your upkeep, Mayael's Aria triggers.
2. Holding priority, activate Junk Jet by paying 3 and sacrificing another artifact, doubling the creature it is attached to's power until end of turn.
3. Repeat step 2 until the creature with Junk Jet attached has power 19 or greater.
4. Resolve the Mayael's Aria trigger, causing you to put a +1/+1 counter on each creature you control, gain 10 life, and win the game.