Stalwart Successor + Blasting Station + Wingrattle Scarecrow

Stalwart Successor

Blasting Station

Wingrattle Scarecrow

How it works

1. Activate Blasting Station by tapping it and sacrificing Wingrattle Scarecrow
2. When Wingrattle Scarecrow dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
3. When Wingrattle Scarecrow enters, Blasting Station and Stalwart Successor trigger.
4. Resolve the Blasting Station trigger, untapping it
5. Resolve the Stalwart Successor trigger, putting a +1/+1 counter on Wingrattle Scarecrow
6. Resolve the Blasting Station ability from step 1
7. Repeat.