Blood Pet + Bolas's Citadel + Mortuary + Overgrowth Elemental

BG identity

Commander legal

The 4 combo pieces

How to execute it

  1. Activate Blood Pet by sacrificing it.
  2. When Blood Pet dies, Mortuary and Overgrowth Elemental trigger.
  3. Resolve the Mortuary trigger, putting Blood Pet from your graveyard onto the top of your library.
  4. Resolve the Overgrowth Elemental trigger, causing you to gain 1 life
  5. Cast Blood Pet from the top of your library by paying 1 life.
  6. Repeat.

What the combo produces