Mikaeus, the Unhallowed + Reaping Willow + Thermopod

RWB identity

Commander legal

The 3 combo pieces

• Mikaeus, the Unhallowed
• Reaping Willow
• Thermopod

How to execute it

1. Activate Thermopod by sacrificing Reaping Willow.
2. When Reaping Willow 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. Repeat.

What the combo produces

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