Bishop of Wings, Breath of Fury, Fervor, and Xenograft

Prerequisites

• Bishop of Wings on the battlefield
• Breath of Fury on the battlefield
• Fervor on the battlefield
• Xenograft on the battlefield
• Breath of Fury attached to any other creature you control
• You control at least one additional creature
• An opponent cannot block creatures you control
• "Angel" chosen with Xenograft

Steps

1. Deal combat damage using the creature that has Breath of Fury attached
2. Breath of Fury triggers, causing you to sacrifice the creature it is attached to, then attach Breath of Fury to any other creature you control, then causing you to untap all creatures you control and to get an additional combat phase after this one
3. When the creature that had Breath of Fury attached dies as an Angel due to Xenograft, Bishop of Wings' second ability triggers, creating a 1/1 Spirit creature token
4. When the Spirit enters the battlefield as an Angel due to Xenograft, Bishop of Wings' first ability triggers, causing you to gain 4 life
5. Repeat each combat phase

Results

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