Agatha's Soul Cauldron + Crystalline Crawler + Fanning the Flames + Ultros, Obnoxious Octopus

Mana needed: {6}{R}{R}

UR identity

Commander legal

The 4 combo pieces

How to execute it

  1. Cast Fanning the Flames with buyback by paying {6}{R}{R}.
  2. Ultros's first and second abilities trigger, tapping a creature an opponent controls and putting a stun counter on it, and then putting eight +1/+1 counters on Ultros.
  3. Resolve Fanning the Flames, dealing 3 damage to any target and returning it to your hand.
  4. Activate Ultros using Crystalline Crawler's first ability eight times by removing eight +1/+1 counter from it, adding {6}{R}{R}.
  5. Repeat.

What the combo produces