Mayael's Aria, and Targ Nar, Demon-Fang Gnoll

Prerequisites

• Mayael's Aria on the battlefield
• Targ Nar, Demon-Fang Gnoll on the battlefield
• at most available

Steps

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