Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight, Intruder Alarm, and Blinking Spirit

Prerequisites

• Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight on the battlefield
• Intruder Alarm on the battlefield
• Blinking Spirit in hand

Steps

1. Cast Blinking Spirit by paying its mana cost reduced by the number of creatures you can tap while casting it
2. When Blinking Spirit enters, Intruder Alarm triggers, untapping all creatures
3. Activate Blinking Spirit by paying , returning it from the battlefield to your hand
4. Repeat

Results

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