Breath of Fury + Tannuk, Steadfast Second + Council of Reeds
Breath of Fury
Tannuk, Steadfast Second
Council of Reeds
Infinite creature ETBInfinite creature LTBInfinite combat damageInfinite combat phasesInfinite creature tokens with hasteInfinite death triggersInfinite mana creatures you control can produceInfinite creature sacrifice triggersInfinite untap of creatures you control
How it works
At the beginning of your combat phase, Council of Reeds 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.