Mayael's Aria, and Junk Jet

Prerequisites

• Mayael's Aria on the battlefield
• Junk Jet on the battlefield

Steps

1. At the beginning of your upkeep, Mayael's Aria triggers
2. Holding priority, activate Junk Jet by paying 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

Results

• Win the game