Mayael's Aria, and Casey Jones, Asphalt Hooligan

Prerequisites

• Mayael's Aria on the battlefield
• Casey Jones, Asphalt Hooligan on the battlefield
• at most available

Steps

1. At the beginning of your upkeep, Mayael's Aria triggers
2. Holding priority, activate Casey Jones by paying , doubling its power until end of turn
3. Repeat step 2 until Casey Jones 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