Stalwart Successor, and Blasting Station

Prerequisites

• Stalwart Successor on the battlefield
• Blasting Station on the battlefield

Steps

1. Activate Blasting Station by tapping it and sacrificing the creature with persist
2. When that creature dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it
3. When that creature enters, Blasting Station and Stalwart Successor trigger
4. Resolve the Blasting Station trigger, untapping it
5. Resolve the Stalwart Successor trigger, putting a +1/+1 counter on the persist creature
6. Remove a +1/+1 and a -1/-1 counter from that creature as a state-based action
7. Resolve the Blasting Station ability from step 1 Repeat

Results

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