Bloodied Ghost + Mikaeus, the Unhallowed + Thermopod

RWB identity

Commander legal

The 3 combo pieces

• Bloodied Ghost
• Mikaeus, the Unhallowed
• Thermopod

How to execute it

1. Activate Thermopod by sacrifiicing Bloodied Ghost.
2. When Bloodied Ghost dies, its undying ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it. When it enters, Bloodied Ghost will put a -1/-1 counter on itself, removing the +1/+1 counter.
3. Repeat.

What the combo produces

• Infinite creature LTB
• Infinite death triggers
• Infinite ETB
• Infinite red mana
• Infinite sacrifice triggers