Infinite combat damageInfinite combat phasesInfinite death triggersInfinite creature ETBInfinite creature LTBInfinite mana creatures you control can produceInfinite creature sacrifice triggersInfinite untap of creatures you controlInfinite creature tokens with haste
How it works
Declare the creature with Breath of Fury attached and Leonin Warleader as attackers.
Leonin Warleader triggers, creating a creature token.
Deal combat damage using the creature that has Breath of Fury attached.
Breath of Fury triggers, causing you to sacrifice the creature it is attached to, then attach Breath of Fury to the creature token, then causing you to untap all creatures you control and to get an additional combat phase after this one.
Repeat each combat phase.
This dazzling orchestration transforms a simple strike into an endless march of vengeance, relying on Leonin Warleader to continuously supply fresh fodder whenever it joins the fray. Breath of Fury provides the crucial engine, letting you sacrifice the creature it enchants upon dealing combat damage to leap onto a newly minted token and grant an extra combat phase. Meanwhile, Fervor ensures your growing army never loses momentum, giving every fresh token haste so they can charge straight into battle the moment they emerge.