Tradewind Rider, Intruder Alarm, and Priest of Urabrask

Prerequisites

• Tradewind Rider on the battlefield
• Intruder Alarm on the battlefield
• Priest of Urabrask in hand
• available

Steps

1. Cast Priest of Urabrask by paying
2. When Priest of Urabrask enters the battlefield, it and Intruder Alarm trigger
3. Resolve the Priest of Urabrask trigger, adding
4. Resolve the Intruder Alarm trigger, untapping all creatures
5. Activate Tradewind Rider by tapping it, Priest of Urabrask and one other creature you control, returning Priest of Urabrask from the battlefield to your hand
6. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite storm count
• Infinite red mana
• Infinite untap of creatures you control
• Infinite mana creatures you control can produce