Tree of Redemption and Near-Death Experience on the battlefield.
Tree of Redemption does not have summoning sickness.
({4} magic symbol) ({G} magic symbol) ({G} magic symbol) ({W} magic symbol) ({U} magic symbol) ({U} magic symbol) plus enough mana to pay for commander tax, if applicable available.
Steps
On the end step prior to your turn, cast Ride the Avalanche by paying ({G} magic symbol) ({U} magic symbol) , allowing you to cast the next spell this turn as though it has flash.
Cast Storvald either from your hand or from the command zone by paying ({4} magic symbol) ({G} magic symbol) ({W} magic symbol) ({U} magic symbol) and commander tax, if applicable.
When Storvald enters the battlefield, it triggers, causing Tree or Redemption's power and toughness to become 1 until end of turn.
Activate Tree of Redemption by tapping it, causing your life total to become 1.
At the beginning of your upkeep, Near-Death Experience triggers, causing you to win the game.
Results
Win the game at the beginning of your next upkeep.