Breath of Fury + Yore-Tiller Nephilim + Fervor

Prerequisites

• Breath of Fury attached to another nontoken creature you control.
• An opponent cannot block creatures you control.
• You control an additional creature, or have a creature card in your graveyard.

Steps

1. 1Declare the creature with Breath of Fury attached and Yore-Tiller Nephilim as attackers.
2. 2Yore-Tiller Nephilim triggers, returning a creature card from your graveyard to the battlefield tapped and attacking.
3. 3Deal combat damage to an opponent using the creature with Breath of Fury attached.
4. 4Breath of Fury triggers, causing you to sacrifice the creature it is attached to, then attach Breath of Fury to another creature, untap all creatures you control and get an additional combat phase after this one.
5. 5Repeat each combat phase.

Effects

• Infinite combat damage
• Infinite combat phases
• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite death triggers
• Infinite mana creatures you control can produce
• Infinite untap of creatures you control