Near-Death Experience | Yavimaya Bloomsage // Channel

Cards

During your turn, activate
Teferi, Time Raveler's first loyalty ability by putting a +1/+1 counter on them, allowing you to cast sorcery spells as though they had flash until your next turn.
On the end step prior to your turn, cast a copy of
Channel from exile by paying ({G} magic symbol) ({G} magic symbol) , unpreparing
Yavimaya Bloomsage.
Activate
Channel by paying 1 life, adding ({C} magic symbol) .
Repeat step 2 until you have exactly 1 life.
At the beginning of your upkeep,
Near-Death Experience triggers, causing you to win the game.

This combo has been estimated to be Exhibition (Bracket 1+).