Sarcatog + Lesser Masticore + Mm'menon, Uthros Exile

Sarcatog

Lesser Masticore

Mm'menon, Uthros Exile

How it works

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.

This clever loop hinges on the elegant interaction between Lesser Masticore's persist ability and Mm'menon, Uthros Exile's triggered ability, which neutralizes the resulting -1/+1 counter by immediately placing a +1/+1 counter on it upon re-entry. Because state-based actions naturally cancel out adjacent +1/+1 and -1/+1 counters, Lesser Masticore enters the battlefield ready to die all over again. You simply feed this recurring metal beast to Sarcatog's sacrifice outlet, letting you pump Sarcatog into a colossal threat while generating an endless stream of artifact and creature sacrifices, enters-the-battlefield, and death triggers.