Mikaeus, the Unhallowed, Blasting Station, and Soulstinger

Prerequisites

• Mikaeus, the Unhallowed on the battlefield
• Blasting Station on the battlefield
• Soulstinger on the battlefield

Steps

1. Activate Blasting Station by tapping it and sacrificing Soulstinger
2. When Soulstinger dies, its undying ability triggers, returning it from your graveyard to the battlefield without a +1/+1 counter on it due to its replacement effect
3. When Soulstinger enters, Blasting Station triggers, untapping Blasting Station
4. Resolve the Blasting Station ability from step 1 Repeat

Results

• Infinite -1/-1 counters
• Infinite damage
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers