Devilish Valet + Mayael's Aria + Phylath, World Sculptor + Emergence Zone
Devilish Valet
Mayael's Aria
Phylath, World Sculptor
Emergence Zone
Near-infinite power for a creature until end of turnWin the game at the beginning of your next upkeep
How it works
At the beginning of your upkeep, Mayael's Aria triggers.
Holding priority, activate Emergence Zone's second ability by paying 1 and tapping it, allowing you to cast all spells this turn as though they have flash.
Cast Phylath by paying 4.
Phylath enters the battlefield, triggering itself and Devilish Valet.
Resolve the Phylath trigger, creating a 0/1 Plant creature token for each basic land you control.
Each Plant token enters the battlefield, triggering Devilish Valet that many times.
Resolve a Devilish Valet trigger, doubling its power until end of turn.
Repeat step 7 for each remaining Devilish Valet trigger.
Resolve the Mayael's Aria trigger, causing you to put a +1/+1 counter on each creature you control, gain ten life and win the game.