Aya of Alexandria + Breath of Fury + Encroaching Mycosynth + Tuktuk Rubblefort

Aya of Alexandria

Breath of Fury

Encroaching Mycosynth

Tuktuk Rubblefort

How it works

1. Deal combat damage using the creature that has Breath of Fury attached.
2. Breath of Fury and Aya of Alexandria trigger.
3. Resolve the Aya of Alexandria trigger, creating a 1/1 Assassin creature token.
4. Resolve the Breath of Fury trigger, 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.
5. Repeat each combat phase.

This brilliant loop transforms your entire battlefield into an unstoppable multi-phase engine by leaning heavily on Encroaching Mycosynth, which turns every single nonland permanent you control into an artifact in addition to its other types. Because artifacts are historic, Aya of Alexandria watches every successful strike and churns out a steady supply of Assassin tokens whenever your historic creatures connect with a player. Meanwhile, Tuktuk Rubblefort grants those newly minted tokens haste so they can immediately join the fray. You simply enchant one of these attackers with Breath of Fury, and each time it deals combat damage, you sacrifice it, move the Aura to the fresh Assassin token, untap everything, and march right into another combat phase!