Infinite creature LTBInfinite creature ETBInfinite creature sacrifice triggersInfinite death triggersInfinite combat phasesInfinite untap of creatures you controlInfinite mana creatures you control can produceInfinite combat damage
How it works
Declare Aurelia as an attacker, triggering its ability, causing you to untap all creatures you control and to get an additional combat phase after this one.
Deal combat damage to an opponent using Aurelia, triggering Impostor Syndrome, creating a token copy of Aurelia that isn't legendary.
During your next combat phase, declare Aurelia and the Aurelia token as attackers.
The Aurelia token triggers, causing you to untap all creatures you control and to get an additional combat phase after this one.
Repeat from step 2.
This clever pairing takes advantage of Aurelia, the Warleader's combat triggers and untap ability to multiply your offensive pressure exponentially. When Aurelia strikes a player, Impostor Syndrome steps in to clone her, bypassing the legendary rule entirely so you can field multiple copies at once. Because each new Aurelia token triggers its own additional combat phase and untap step, you can chain these attacks indefinitely for endless combat phases and sweeping combat damage.