Infinite blinkingInfinite combat damageInfinite combat phasesInfinite creature ETBInfinite creature LTBInfinite mana creatures you control can produceInfinite untap of creatures you control
How it works
Declare Brago and Combat Celebrant as attackers, choosing to exert Combat Celebrant as it attacks.
Combat Celebrant triggers, untapping all other creatures you control and to get an additional combat phase after this one.
Deal combat damage to an opponent using Brago.
Brago triggers, blinking Combat Celebrant.
Repeat each combat phase.
This elegant loop uses Brago, King Eternal's combat damage trigger to continuously exile and blink Combat Celebrant, resetting the warrior's exert ability so you can generate an endless chain of extra combat phases. Because Anger sits safely in your graveyard granting haste as long as you control a Mountain, both attackers can immediately rush back into the fray each turn without missing a beat. Every iteration not only batters your opponents with infinite combat damage, but also lets Brago's blink trigger endlessly refresh any other nonland permanents you happen to control.