Melira, Sylvok Outcast, Blasting Station, and Safehold Elite

Prerequisites

• Melira, Sylvok Outcast on the battlefield
• Blasting Station on the battlefield
• Safehold Elite on the battlefield

Steps

1. Activate Blasting Station by tapping it and sacrificing Safehold Elite
2. When Safehold Elite dies, its persist ability triggers, returning it from your graveyard to the battlefield without a -1/-1 counter on it due to Melira
3. When Safehold Elite enters, Blasting Station triggers, untapping Blasting Station 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