Ojer Axonil, Deepest Might // Temple of Power + Pyrohemia

Prerequisites

Your life total is equal to or greater than the highest life total among your opponents divided by Ojer Axonil's power, rounded up. You have a way to give Ojer Axonil indestructible or protection from red if its toughness is less than the highest life total among your opponents divided by Ojer Axonil's power, rounded up. You have an amount of

Steps

1. Give Ojer Axonil indestructible or protection from red, if needed.
2. Activate Pyrohemia by paying {R}, dealing 1 damage to each creature and to you, and dealing damage equal to Ojer Axonil's power to each opponent.
3. If any opponent has 0 or less life, they lose the game as a state-based action.
4. Repeat from step 2 until each opponent has lost the game.