Grinding Station + Mikaeus, the Unhallowed + The Reaper, King No More

BRG identity

Commander legal

The 3 combo pieces

• Grinding Station
• Mikaeus, the Unhallowed
• The Reaper, King No More

How to execute it

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

What the combo produces

• Infinite -1/-1 counters
• Infinite creature LTB
• Infinite death triggers
• Infinite ETB
• Infinite mill
• Infinite recursion of non-Human creatures you control
• Infinite sacrifice triggers
• Infinite self-mill