Mm'menon, Uthros Exile, Lesser Masticore, and Sarcatog

Prerequisites

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

Steps

1. Activate Sarcatog 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 Sarcatog ability
5. Repeat

Results

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