Melira, Sylvok Outcast + Blasting Station + Persistent Constrictor

Melira, Sylvok Outcast

Blasting Station

Persistent Constrictor

How it works

1. Activate Blasting Station by tapping it and sacrificing Persistent Constrictor.
2. When Persistent Constrictor dies, its persist ability triggers, returning it from your graveyard to the battlefield without a -1/-1 counter on it due to Melira.
3. When Persistent Constrictor enters, Blasting Station triggers, untapping Blasting Station
4. Resolve the Blasting Station ability from step 1
5. Repeat.