Breath of Fury + Treasury Thrull + Aluren + Fervor
Breath of Fury
Treasury Thrull
Aluren
Fervor
Infinite combat damageInfinite combat phasesInfinite death triggersInfinite creature ETBInfinite creature LTBInfinite mana creatures you control can produceInfinite creature sacrifice triggersInfinite storm countInfinite untap of creatures you control
How it works
Declare Treasury Thrull and the creature with Breath of Fury attached as attackers.
Treasury Thrull triggers, returning a creature card with mana value 3 or less from your graveyard to your hand.
Cast the creature by paying 0 due to Aluren.
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 with mana value 3 or less, then causing you to untap all creatures you control and to get an additional combat phase after this one.