Bolas's Citadel + Dross Harvester + Mortuary + Spore Frog

BG identity

Commander legal

The 4 combo pieces

How to execute it

  1. Activate Spore Frog by sacrificing it.
  2. When Spore Frog dies, Mortuary and Dross Harvester trigger.
  3. Resolve the Mortuary trigger, putting Spore Frog from your graveyard onto the top of your library.
  4. Resolve the Dross Harvester trigger, causing you to gain 2 life
  5. Resolve the Spore Frog ability.
  6. Cast Spore Frog from the top of your library by paying 1 life.
  7. Repeat.

What the combo produces