Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight, Blasting Station, and Walking Archive

Prerequisites

• Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight on the battlefield
• Blasting Station on the battlefield
• Walking Archive on the battlefield

Steps

1. Activate Blasting Station by tapping it and sacrificing Walking Archive
2. When Walking Archive dies, its persist ability triggers, returning it from your graveyard to the battlefield without a -1/-1 counter on it due to its replacement effect
3. When Walking Archive enters, Blasting Station triggers, untapping Blasting Station
4. Resolve the Blasting Station ability from step 1
5. Repeat

Results

• Infinite ETB
• Infinite LTB
• Infinite damage
• Infinite death triggers
• Infinite sacrifice triggers