Breath of Fury + Living Hive + Fervor

Breath of Fury

Living Hive

Fervor

How it works

1. Deal combat damage to an opponent using Living Hive and the creature with Breath of Fury attached.
2. Breath of Fury and Living Hive trigger.
3. Resolve the Living Hive trigger, creating six 1/1 Insect creature tokens.
4. Resolve the Breath of Fury trigger, causing you to sacrifice the creature it is attached to, then attach Breath of Fury to an Insect token, untap all creatures you control and get an additional combat phase after this one.
5. Repeat each combat phase.
6. Deal combat damage using the creature that has Breath of Fury attached and Living Hive, triggering Breath of Fury and Living Hive.
7. Resolve the Living Hive trigger, creating at least one creature token.
8. Resolve the Breath of Fury trigger, causing you to sacrifice the creature it is attached to, then attach Breath of Fury to a creature token, then causing you to untap all creatures you control and to get an additional combat phase after this one.
9. Repeat each combat phase.

This looping offensive relies on Living Hive as the heavy hitter that both deals the initial combat damage to an opponent and spawns the raw material needed to keep the chain alive, producing six 1/1 green Insect creature tokens right out of the gate. Enchanting one of your attackers with Breath of Fury provides the engine's core mechanic, letting you sacrifice the creature it's on the moment it connects, bounce the Aura to one of your newly minted tokens, untap everything, and immediately seize an additional combat phase. Meanwhile, Fervor ensures your freshly created tokens can join the fray right away without waiting around for summoning sickness, letting you endlessly repeat the cycle to overwhelm your opponents in an unstoppable swarm of infinite combat phases and damage.