Intruder Alarm, and Stonecloaker

Prerequisites

• Intruder Alarm on the battlefield
• Stonecloaker in hand
• undefined

Steps

1. Activate all mana-producing creatures you control by tapping them, adding at least
2. Cast Stonecloaker by paying
3. Stonecloaker enters the battlefield, triggering Intruder Alarm and Stonecloaker
4. Resolve the Intruder Alarm's trigger, untapping all creatures you control
5. Resolve the Stonecloaker's trigger, returning it to your hand
6. Repeat

Results

• Infinite ETB
• Infinite LTB
• Infinite mana creatures you control can produce
• Infinite storm count
• Exile all cards from all graveyards
• Infinite untap of creatures