Breath of Fury + Seraphic Steed + Jinnie Fay, Jetmir's Second

Breath of Fury

Seraphic Steed

Jinnie Fay, Jetmir's Second

How it works

1. Activate Seraphic Steed's saddle ability by tapping any number of other creatures with power 4 or more, causing it to become saddled until end of turn.
2. Declare Seraphic Steed and the creature with Breath of Fury attached as attackers.
3. Seraphic Steed triggers, creating a 2/2 Cat creature token with haste due to Jinnie Fay.
4. Deal combat damage using the creature that has Breath of Fury attached.
5. Breath of Fury triggers, causing you to sacrifice the creature it is attached to, then attach Breath of Fury to the Cat token, then causing you to untap all creatures you control and to get an additional combat phase after this one.
6. Repeat from step 2 each combat phase.

This ingenious loop lets you chain infinite combat phases by continually sacrificing and recasting your attacking threat. It all starts when Seraphic Steed swings while saddled, but Jinnie Fay, Jetmir's Second steps in to convert the resulting token creation into a swift 2/2 Cat with haste. Meanwhile, the creature enchanted with Breath of Fury connects for combat damage to a player, triggering the Aura to sacrifice its host and hop directly onto that fresh Cat token while untapping your entire board. Because you also gained an additional combat phase, you can simply saddle up and repeat the carnage over and over again.