Cast Minion of the Wastes by paying ({3} magic symbol) ({B} magic symbol) ({B} magic symbol) ({B} magic symbol) .
Choose to pay nineteen life as Minion of the Wastes enters the battlefield, causing it to be a 19/19 creature.
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 ten life, and win the game.
Results
Win the game at the beginning of your next upkeep.