Mayael's Aria, Dark Depths, and Mutated Cultist

Prerequisites

• Mayael's Aria on the battlefield
• Dark Depths on the battlefield
• Mutated Cultist in hand
• undefined available

Steps

1. Cast Mutated Cultist by paying
2. Mutated Cultist triggers, removing all ice counters from Dark Depths
3. Dark Depths triggers, causing you to sacrifice it and create a 20/20 Marit Lage legendary creature token
4. At the beginning of your next upkeep, Mayael's Aria triggers, causing you to put a +1/+1 counter on each creature you control, gain 10 life and win the game

Results

• Win the game at the beginning of your next upkeep