Kolodin, Triumph Caster + Salvaging Station + Grinding Station + Consulate Dreadnought

Kolodin, Triumph Caster

Salvaging Station

Grinding Station

Consulate Dreadnought

How it works

1. Activate Salvaging Station by tapping it, returning Consulate Dreadnought from your graveyard to the battlefield.
2. When Consulate Dreadnought enters, Grinding Station and Kolodin trigger.
3. Resolve the Grinding Station trigger, untapping it.
4. Resolve the Kolodin trigger, causing Consulate Dreadnought to become an artifact creature until end of turn.
5. Activate Grinding Station by tapping it and sacrificing Consulate Dreadnought.
6. When Consulate Dreadnought dies, Salvaging Station triggers, untapping Salvaging Station.
7. Resolve the Grinding Station ability.
8. Repeat.