The Wandering Minstrel, Breath of Fury, and Fervor

Prerequisites

• The Wandering Minstrel on the battlefield
• Breath of Fury on the battlefield
• Fervor on the battlefield

Steps

1. At the beginning of your combat phase, The Wandering Minstrel triggers, creating a 2/2 Elemental creature token
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 Elemental 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

Results

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