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

Prerequisites

• Mm'menon, Uthros Exile on the battlefield
• Lesser Masticore on the battlefield
• Ravenous Intruder on the battlefield

Steps

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

Results

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