Lesser Masticore + Mm'menon, Uthros Exile + Ravenous Intruder

UR identity

Commander legal

The 3 combo pieces

• Lesser Masticore
• Mm'menon, Uthros Exile
• Ravenous Intruder

How to execute it

1. Activate Ravenous Intruder by sacrificing Lesser Masticore.
2. When Lesser Masticore dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
3. When Lesser Masticore enters, Mm'menon triggers, putting a +1/+1 counter on Lesser Masticore.
4. Resolve the Ravenous Intruder ability.
5. Repeat.

What the combo produces

• Infinite creature LTB
• Infinite death triggers
• Infinite ETB
• Infinite sacrifice triggers
• Infinitely large creature until end of turn