Breath of Fury + Fervor + Tervigon

Breath of Fury

Fervor

Tervigon

How it works

1. Deal combat damage using the creature that has Breath of Fury attached and Tervigon, triggering Breath of Fury and Tervigon.
2. Resolve the Tervigon trigger, creating at least one creature token.
3. 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.
4. Repeat each combat phase.

This vicious loop relies on Tervigon to churn out an army of 1/1 green Tyranid creature tokens whenever it deals combat damage to a player, which immediately gain the ability to attack thanks to Fervor granting your entire team haste. You enchant one of those fresh tokens with Breath of Fury, sending it into the red zone alongside Tervigon; when it connects with an opponent, Breath of Fury triggers its sacrifice condition to let you move the Aura right onto another new token. Because Breath of Fury simultaneously untaps all your creatures and grants you an additional combat phase, you can endlessly repeat the cycle of striking, generating tokens, and passing the Aura down the line for infinite combat steps.