Curator Beastie + Lesser Masticore + Blasting Station

Curator Beastie

Lesser Masticore

Blasting Station

How it works

1. Activate Blasting Station by tapping it and 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 due to Curator Beastie.
3. When Lesser Masticore enters the battlefield, Blasting Station triggers, untapping Blasting Staiton.
4. Resolve the Blasting Station ability from step 1, dealing 1 damage to any target.
5. Repeat.