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

   Prerequisites

What do I need to start this combo?
Éomer in your graveyard.
All other permanents on the battlefield.
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.

   Steps

How does this combo work?
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.

   Results

What do I get from this combo?
Infinite LTB
Infinite ETB
Infinite sacrifice triggers
Infinite death triggers
Infinite mill
Infinite self-mill
Infinite combat phases
Altaïr Ibn-La'Ahad
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