Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight, Blasting Station, and Ceti Eel

Prerequisites

• Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight on the battlefield
• Blasting Station on the battlefield
• Ceti Eel on the battlefield

Steps

1. Activate Blasting Station by tapping it and sacrificing Ceti Eel
2. When Ceti Eel dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it
3. When Ceti Eel enters, it and Blasting Station trigger
4. Resolve the Blasting Station trigger, untapping it
5. Resolve the Ceti Eel trigger, causing you to mill two cards and put a +1/+1 counter on it
6. Resolve the Blasting Station ability from step 1 Repeat

Results

• Infinite creature ETB
• Infinite creature LTB
• Infinite damage
• Infinite death triggers
• Infinite creature sacrifice triggers
• Infinite self-mill