Missy + Blasting Station + Horde Ambusher

Missy

Blasting Station

Horde Ambusher

How it works

1. Activate Blasting Station by tapping it and sacrificing Horde Ambusher.
2. When Horde Ambusher dies, Missy's first ability triggers, returning Horde Ambusher from your graveyard to the battlefield face down as a 2/2 Cyberman artifact creature.
3. When Horde Ambusher enters the battlefield, Blasting Station triggers, untapping Blasting Station.
4. Resolve the Blasting Station ability from step 1, dealing 1 damage to any target.
5. Activate Horde Ambusher's morph ability by revealing a red card from your hand, turning it face up.
6. Repeat.

This clever loop turns Blasting Station into a fatal engine by exploiting Missy's ability to constantly resurrect your fallen threats as artifacts. Whenever you sacrifice Horde Ambusher to Blasting Station, Missy steps in to return it straight to the battlefield face down as a 2/2 Cyberman artifact creature. That entry immediately triggers Blasting Station to untap itself, and turning Horde Ambusher back face up with its morph ability (by revealing a red card in your hand) keeps the cycle primed and ready to repeat for infinite damage.