Colfenor, the Last Yew + Gutter Grime + Phantom Train

WBG identity

Commander legal

The 3 combo pieces

How to execute it

  1. Cast the creature card in your hand by paying {0}.
  2. Either that creature dies as a state-based action due to having zero toughness, or activate Phantom Train by sacrificing that creature.
  3. Gutter Grime triggers, putting a slime counter on it and creating a X/X Ooze creature token.
  4. Activate Phantom Train by sacrificing the Ooze.
  5. When the Ooze dies, Colfenor triggers, returning the creature card from your graveyard to your hand.
  6. Resolve the Phantom Train abilities, putting a +1/+1 counter on it each time.
  7. Repeat.

What the combo produces