Mikaeus, the Unhallowed, Blasting Station, and Dread Tiller

Prerequisites

• Mikaeus, the Unhallowed on the battlefield
• Blasting Station on the battlefield
• Dread Tiller on the battlefield

Steps

1. Activate Blasting Station by tapping it and sacrificing Dread Tiller
2. When Dread Tiller dies, its undying ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it
3. When Dread Tiller enters the battlefield, it and Blasting Station trigger
4. Resolve the Dread Tiller trigger, putting a -1/-1 counter on it
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