Mikaeus, the Unhallowed, Blasting Station, and Woodfall Primus

Prerequisites

• Mikaeus, the Unhallowed on the battlefield
• Blasting Station on the battlefield
• Woodfall Primus on the battlefield

Steps

1. Activate Blasting Station by tapping it and sacrificing Woodfall Primus
2. When Woodfall Primus dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it
3. When Woodfall Primus enters, it and Blasting Station trigger
4. Resolve the Woodfall Primus trigger, destroying a noncreature permanent
5. Resolve the Blasting Station trigger, untapping it Resolve the Blasting Station ability from step 1
6. Activate Blasting Station by tapping it and sacrificing Woodfall Primus
7. When Woodfall Primus dies, its undying ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it
8. Repeat steps 3 through 5 once
9. Resolve the Blasting Station ability from step 7
10. Repeat

Results

• Infinite death triggers
• Destroy any number of noncreature permanents
• Infinite ETB
• Infinite LTB
• Infinite damage
• Infinite sacrifice triggers
• Lock
• Infinite mana creatures you control can produce
• Infinite untap of creatures you control