Dazzling Theater // Prop Room, Intruder Alarm, and Stonecloaker

Prerequisites

• Dazzling Theater // Prop Room on the battlefield
• Intruder Alarm on the battlefield
• Stonecloaker in hand

Steps

1. Cast Stonecloaker by tapping a number of creatures and paying
2. When Stonecloaker enters the battlefield, its first and second abilities and Intruder Alarm trigger
3. Resolve the first Stonecloaker trigger, returning it from the battlefield to your hand
4. Resolve the second Stonecloaker trigger, exiling a card from a graveyard
5. Resolve the Intruder Alarm trigger, untapping all creatures
6. Repeat

Results

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