Altaïr Ibn-La'Ahad + Bloodthirster + Roshan, Hidden Magister

Altaïr Ibn-La'Ahad

Bloodthirster

Roshan, Hidden Magister

How it works

1. Give Altaïr Ibn-La'Ahad vigilance by any method.
2. Declare Altaïr Ibn-La'Ahad as an attacker.
3. Altaïr Ibn-La'Ahad triggers, exiling Bloodthirster from your graveyard with a memory counter on it as it is an Assassin due to Roshan, and then creating a tapped and attacking token copy of each creature you own in exile with a memory counter on it.
4. Deal combat damage to an opponent using the Bloodthirster token.
5. The Bloodthirster token triggers, causing you to untap it and to get an additional combat phase after this one.
6. At the end of your combat phase, Altaïr Ibn-La'Ahad triggers, exiling the Bloodthirster token.
7. Move to your next combat phase, and declare Altaïr Ibn-La'Ahad as an attacker.
8. Altaïr Ibn-La'Ahad triggers, creating a tapped and attacking token copy of each creature you own in exile with a memory counter on it.
9. Repeat from step 4.

This explosive loop turns the graveyard into a launchpad for an unstoppable swarm of Assassins, fueled entirely by the combat-heavy synergy between Altaïr Ibn-La'Ahad, Bloodthirster, and Roshan, Hidden Magister. Because Roshan blankets all your creature cards—even those in the graveyard—with the Assassin type, Altaïr can pluck Bloodthirster from the bin during his initial attack to flood the board with a threatening token copy. Every time that Bloodthirster token connects for combat damage, its own ability untaps it and grants an extra combat phase, circumventing its usual restrictions and letting Altaïr trigger repeatedly to churn out fresh waves of attacking tokens.