Altar of Dementia + Gravebane Zombie + Rooftop Storm + The Reality Chip

UB identity

Commander legal

The 4 combo pieces

What must be in place

The Reality Chip attached to any other creature you control.

How to execute it

  1. Activate Altar of Dementia by sacrificing Gravebane Zombie.
  2. Gravebone Zombie is put on top of your library instead of into your graveyard.
  3. Resolve the Altar of Dementia ability, causing target opponent to mill cards equal to Gravebane Zombie's power.
  4. Cast Gravebane Zombie from the top of your library by paying {0}.
  5. Repeat.

What the combo produces