Altaïr Ibn-La'Ahad + Éomer, Marshal of Rohan + Conspiracy + Exalted Sunborn

Altaïr Ibn-La'Ahad

Éomer, Marshal of Rohan

Conspiracy

Exalted Sunborn

How it works

1. Declare Altaïr as an attacker, triggering its ability, exiling Éomer from your graveyard with a memory counter on it and creating two tapped and attacking copies of Éomer.
2. Put all but one Éomer token into your graveyard due to the legend rule, causing you to get at least one Éomer trigger, causing you to untap all creatures you control and to get an additional combat phase after this one.
3. At the end of your combat phase, Altaïr triggers, causing you to exile the Éomer token.
4. Repeat each combat phase.

This elegant sequence turns the graveyard into a bustling assembly line by redefining the very nature of your creatures with Conspiracy, ensuring every card you own counts as an Assassin for Altaïr Ibn-La'Ahad. When Altaïr attacks, he exiles Éomer, Marshal of Rohan and floods the battlefield with copies, a process dramatically amplified by Exalted Sunborn doubling every single token created. The legend rule immediately sends the surplus Éomer tokens to the graveyard, triggering the survivor's ability to untap your board and grant you an additional combat phase. Because Altaïr's attack trigger and the resulting combat loops reset seamlessly, you can repeat this process indefinitely to generate boundless combat steps, enters-the-battlefield triggers, and deaths.