Breath of Fury + Origin of the Hidden Ones + Tannuk, Steadfast Second

Breath of Fury

Origin of the Hidden Ones

Tannuk, Steadfast Second

How it works

1. At the beginning of your precombat main phase, Origin of the Hidden Ones triggers, putting a lore counter on it.
2. Origin of the Hidden Ones' third chapter ability triggers, causing you to create an Assassin token whenever an Assassin attacks this turn and sacrifice Origin of the Hidden Ones.
3. Declare the creature with Breath of Fury attached, and at least one Assassin if the creature with Breath of Fury attached isn't an Assassin, as attackers.
4. Origin of the Hidden Ones triggers, creating a 1/1 Assassin creature token that's tapped and attacking.
5. Deal combat damage using the creature that has Breath of Fury attached.
6. Breath of Fury triggers, causing you to sacrifice the creature it is attached to, then attach Breath of Fury to the Assassin token, then causing you to untap all creatures you control and to get an additional combat phase after this one.
7. Repeat from step 3 each combat phase.

This loop turns the recursive extra combat phases of Breath of Fury into an infinite chain by continuously moving the Aura to a fresh attacker. Tannuk, Steadfast Second ensures your newly entering creatures are immediately ready for battle by granting haste to your team. Meanwhile, Origin of the Hidden Ones provides the necessary fodder through its third chapter, which spawns attacking Assassin tokens whenever your creatures declare an attack. By repeatedly sacrificing the creature enchanted by Breath of Fury, moving the Aura to the newly created token, and untapping your entire board, you generate an endless succession of combat phases along with infinite death and sacrifice triggers.