Ayara, Widow of the Realm // Ayara, Furnace Queen, and Breath of Fury

Prerequisites

• Ayara, Widow of the Realm // Ayara, Furnace Queen on the battlefield
• Breath of Fury on the battlefield
• Furnace Queen
• Breath of Fury attached to another nontoken creature you control
• You have at least one creature card in your graveyard
• An opponent cannot block creatures you control

Steps

1. At the beginning of your combat phase, Ayara triggers, returning a creature card from your graveyard to the battlefield, and giving it haste until end of turn
2. Deal combat damage using the creature that has Breath of Fury attached
3. Breath of Fury triggers, causing you to sacrifice the creature it is attached to, then attach Breath of Fury to the nontoken creature Ayara returned, then causing you to untap all creatures you control and to get an additional combat phase after this one
4. Repeat each combat phase

Results

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