Biomancer's Familiar + Umbral Mantle + Yurlok of Scorch Thrash

Mana needed: {1}

UBRG identity

Commander legal

The 3 combo pieces

What must be in place

Umbral Mantle attached to Yurlok of Scorch Thrash.
Yurlok of Scorch Thrash does not have summoning sickness.

How to execute it

  1. Activate Yurlok of Scorch Thrash by paying {1} and tapping it, causing each player to add {B}{R}{G}
  2. Activate Yurlok of Scorch Thrash by paying {1} 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.

What the combo produces