Yurlok of Scorch Thrash + Umbral Mantle + Nyxbloom Ancient

Yurlok of Scorch Thrash

Umbral Mantle

Nyxbloom Ancient

How it works

1. Activate Yurlok of Scorch Thrash by paying 1 and tapping it, causing each player to add .
2. Activate Yurlok of Scorch Thrash by paying 3 and untapping it, causing itself to get +2/+2 until end of turn.
3. Repeat an arbitrarily large amount of times.
4. It is strongly recommended to empty your mana pool using a mana sink before proceeding.
5. Move to your next step or phase, causing each player to lose life equal to the amount of unspent mana in their mana pool.
6. Each player whose mana pool contained an amount of mana equal to or greater than their life total loses the game due to having 0 or less life, which causes a draw if every player lost the game.

This volatile loop centers on Yurlok of Scorch Thrash, whose active ability floods every player's mana pool while weaponizing that very mana through Yurlok of Scorch Thrash's own lingering life-loss trigger. By equipping Yurlok of Scorch Thrash with Umbral Mantle, you gain the ability to repeatedly untap your commander for a modest mana fee, fueling the loop's continuation. The true engine that makes this exponential is Nyxbloom Ancient, whose static ability triples every piece of mana produced into an overwhelming surplus. Because Yurlok of Scorch Thrash forces everyone to watch their unspent mana drain away as lethal damage when phases change, you can deliberately pump infinite mana into the system until all players—including yourself—succumb to lethal life loss, resulting in a dramatic draw.