Altaïr Ibn-La'Ahad + Altar of Dementia + Éomer, Marshal of Rohan + Roshan, Hidden Magister

RWB identity

Commander legal

The 4 combo pieces

What must be in place

Altaïr does not have summoning sickness.
An opponent cannot block and kill Altaïr.
You have at least one legendary creature card exiled with a memory counter on it.

How to execute it

  1. Declare Altaïr as an attacker. Altaïr triggers, exiling Éomer from your graveyard with a memory counter on it, and then creating a tapped and attacking token copy of each card you own that is exiled with a memory counter on it.
  2. Activate Altar of Dementia by sacrificing another legendary creature token except Éomer.
  3. When the creature dies, Éomer triggers, untapping all creatures you control and causing you to get an additional combat phase after this one.
  4. Resolve the Altar of Dementia ability.
  5. Repeat during each combat phase.

What the combo produces