Melira, Sylvok Outcast + Altar of Dementia + Lesser Masticore

Melira, Sylvok Outcast

Altar of Dementia

Lesser Masticore

How it works

1. Activate Altar of Dementia by sacrificing Lesser Masticore.
2. When Lesser Masticore dies, its persist ability triggers, returning it from your graveyard to the battlefield without a -1/-1 counter on it due to Melira.
3. Resolve the Altar of Dementia ability
4. Repeat.

By leveraging Melira, Sylvok Outcast and her passive protection against -1/-1 counters, Lesser Masticore can repeatedly utilize its persist ability to return from the graveyard completely unscathed. Each time the mechanical rodent enters the battlefield, you simply feed it back into Altar of Dementia to sacrifice it once more, milling your opponents to dust in the process. This creates an endless loop of sacrifices and resurrections that mills any targeted player completely out of the game.