Blasting Station, and Warden of the Grove

Prerequisites

• Blasting Station on the battlefield
• Warden of the Grove on the battlefield

Steps

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

Results

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