Infinite ETB, Infinite LTB, Infinite mana creatures you control can produce, Infinite storm count, Infinite untap of creatures, Infinite untap of creatures you control
Cast Cavern Harpy by tapping Fallaji Wayfarer and a blue or black creature.
Cavern Harpy enters the battlefield, triggering itself and Intruder Alarm.
Resolve the Cavern Harpy trigger, returning it from the battlefield to your hand.
Resolve the Intruder Alarm trigger, untapping all creatures.
Repeat.
Component Cards
How It Works
Cast Cavern Harpy by tapping Fallaji Wayfarer and a blue or black creature.
Cavern Harpy enters the battlefield, triggering itself and Intruder Alarm.
Resolve the Cavern Harpy trigger, returning it from the battlefield to your hand.
Resolve the Intruder Alarm trigger, untapping all creatures.
Repeat.