Blasting Station, Dualcaster Mage, and Makeshift Mannequin

Prerequisites

• Blasting Station on the battlefield
• Dualcaster Mage in hand
• Makeshift Mannequin in hand
• available

Steps

1. Cast Makeshift Mannequin by paying its mana cost
2. Holding priority, cast Dualcaster Mage by paying its mana cost
3. When Dualcaster Mage enters, it and Blasting Station trigger, with Dualcaster Mage targeting Makeshift Mannequin
4. Resolve the Blasting Station trigger, untapping it
5. Holding priority, activate Blasting Station by tapping it and sacrificing Dualcaster Mage, dealing 1 damage to any target
6. Resolve the Dualcaster Mage trigger, copying Makeshift Mannequin Resolve the Makeshift Mannequin copy, returning Dualcaster Mage from your graveyard to the battlefield
7. Repeat from step 3

Results

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