Kaervek, the Spiteful + Sword of the Meek + Summoning Station + Grinding Station

Kaervek, the Spiteful

Sword of the Meek

Summoning Station

Grinding Station

How it works

1. Activate Grinding Station by tapping it and sacrificing Sword of the Meek.
2. Summoning Station triggers, untapping itself.
3. Resolve the Grinding Station ability, causing target player to mill three cards.
4. Activate Summoning Station by tapping it, creating a 2/2 Pincher creature token.
5. The Pincher enters the battlefield as a 1/1 creature due to Kaervek, triggering Sword of the Meek, returning Sword of the Meek from your graveyard to the battlefield attached to the Pincher.
6. Sword of the Meek enters the battlefield, triggering Grinding Station, untapping Grinding Station.
7. Repeat.

This intricate loop turns the graveyard and the battlefield into a perpetual motion machine by turning every token created into an artifact sacrifice and back again. Summoning Station provides the raw material by tapping to create a 2/2 Pincher, but Kaervek, the Spiteful immediately shrinks it down to a 1/1 upon entry. That size reduction is the clever trick that lets Sword of the Meek trigger from the graveyard, slipping right back onto the battlefield attached to the tiny token. Meanwhile, Grinding Station handles the disposal by sacrificing that very same Sword of the Meek to mill an opponent, which simultaneously untaps itself via its own artifact-entry trigger and untaps Summoning Station via the artifact-to-graveyard trigger. With everything resetting itself effortlessly, you can repeat this cycle an arbitrary number of times to completely mill out your opponents.