Primo, the Unbounded + Breath of Fury + Mass Hysteria

Primo, the Unbounded

Breath of Fury

Mass Hysteria

How it works

1. Deal combat damage to an opponent using the creature that has Breath of Fury attached, triggering Breath of Fury and Primo.
2. 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.
3. 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.
4. Repeat each combat phase.

This brilliant loop uses Mass Hysteria to grant your creatures haste, allowing newly created threats to dive straight into the red zone without delay. You start by enchanting a creature with base power 0 and dealing combat damage to a player, which simultaneously triggers Primo, the Unbounded to forge a growing Fractal token and triggers Breath of Fury to sacrifice the attacker. Breath of Fury then leaps onto the freshly minted Fractal token—which conveniently enters with base power 0 and inherits the exact counters needed to fuel Primo, the Unbounded's trigger all over again—while untapping your board for an endless succession of additional combat phases.