Jackdaw Savior, Loyal Retainers, and Blasting Station

Prerequisites

• Jackdaw Savior on the battlefield
• Loyal Retainers in the graveyard
• Blasting Station on the battlefield

Steps

1. During your precombat main phase, activate Blasting Station by tapping it and sacrificing the legendary creature with flying
2. When the creature dies, Jackdaw Savior triggers, returning Loyal Retainers from your graveyard to the battlefield
3. When Loyal Retainers enters the battlefield, Blasting Station triggers, untapping Blasting Station
4. Resolve the Blasting Station ability from step 1, dealing 1 damage to any target
5. Activate Loyal Retainers by sacrificing it, returning the legendary creature with flying from your graveyard to the battlefield
6. When the legendary creature enters the battlefield, Blasting Station triggers, untapping Blasting Station
7. Repeat

Results

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