On the end step prior to your turn, activate Emergence Zone's second ability by paying 1 and tapping it, allowing you to cast spells this turn as though they had flash.
Cast Strovald by paying 4 and commander tax, if applicable.
When Storvald enters the battlefield, it triggers, giving Evra base power and toughness 1/1 until end of turn.
Activate Evra by paying 4, causing your life total to become one.
At the beginning of your upkeep, Near-Death Experience triggers, causing you to win the game.