Breath of Fury + Adeline, Resplendent Cathar + Concordant Crossroads
Breath of Fury
Adeline, Resplendent Cathar
Concordant Crossroads
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 hasteInfinitely powerful creature
How it works
Declare the creature with Breath of Fury attached and Adeline as attackers.
Adeline 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 brilliant loop turns your combat step into an endless engine of destruction by leveraging the support of every piece on the board. With Concordant Crossroads granting haste, your creatures are ready to rush into battle immediately, allowing Adeline, Resplendent Cathar to flood the board with attacking tokens the moment you declare attackers. When the creature enchanted by Breath of Fury connects with a player, Breath of Fury triggers to sacrifice that creature and hop onto one of Adeline's newly minted tokens, untapping your entire team and granting an additional combat phase. Because you always have a fresh token waiting to receive the Aura and all your creatures untap to swing again, you can repeat this cycle infinitely to overwhelm your opponents with boundless combat phases and ever-growing damage.