Altar of Dementia + Archghoul of Thraben + Mortuary + Rooftop Storm

UB identity

Commander legal

The 4 combo pieces

What must be in place

You control another nontoken Zombie.

How to execute it

  1. Activate Altar of Dementia by sacrificing Archghoul of Thraben.
  2. Mortuary and Archghoul of Thraben trigger.
  3. Resolve the Mortuary trigger, putting Archghoul of Thraben on top of your library from your graveyard.
  4. Resolve the Archghoul of Thraben trigger, revealing Archghoul of Thraben from the top of your library and putting it into your hand.
  5. Resolve the Altar of Dementia ability, causing target player to mill cards equal to Archghoul of Thraben's power.
  6. Cast Archghoul of Thraben by paying {0}.
  7. Repeat.

What the combo produces