Breath of Fury, Treasury Thrull, Aluren, and Urabrask the Hidden

Prerequisites

• Breath of Fury on the battlefield
• Treasury Thrull on the battlefield
• Aluren on the battlefield
• Urabrask the Hidden on the battlefield
• Breath of Fury attached to a nontoken creature you control with mana value 3 or less
• You have a creature card in your graveyard with mana value 3 or less
• An opponent cannot block creatures you control

Steps

1. Declare Treasury Thrull and the creature with Breath of Fury attached as attackers
2. Treasury Thrull triggers, returning a creature card with mana value 3 or less from your graveyard to your hand
3. Cast the creature by paying due to Aluren
4. Deal combat damage using the creature that has Breath of Fury attached
5. Breath of Fury triggers, causing you to sacrifice the creature it is attached to, then attach Breath of Fury to the creature with mana value 3 or less, then causing you to untap all creatures you control and to get an additional combat phase after this one
6. 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 storm count
• Infinite untap of creatures you control