Primo, the Unbounded + Breath of Fury + Samut, Voice of Dissent
Primo, the Unbounded
Breath of Fury
Samut, Voice of Dissent
Infinite creature ETBInfinite creature LTBInfinite combat damageInfinite combat phasesInfinite death triggersInfinite mana creatures you control can produceInfinite creature sacrifice triggersInfinite untap of creatures you control
How it works
Deal combat damage to an opponent using the creature that has Breath of Fury attached, triggering Breath of Fury and Primo.
Resolve the Primo trigger, creating a 0/0 Fractal creature token that enters with a number of +1/+1 counters on it equal to the damage dealt.
Resolve the Breath of Fury trigger, causing you to sacrifice the creature it is attached to and attach it to the Fractal 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 loop turns a clever combat trigger into an endless chain of extra phases by continually passing the torch to a growing progeny. With Samut, Voice of Dissent granting haste and providing an active untap ability, your board is always ready to strike from nowhere. When you attack and deal damage, Breath of Fury forces you to sacrifice the creature it enchants to move itself onto the brand-new Fractal token created by Primo, the Unbounded. Because Primo triggers off any base power 0 creature dealing combat damage, every fresh Fractal born from the previous hit enters with counters ready to deal even more damage, untap your team, and repeat the cycle indefinitely.