Bludgeon Brawl + Cephalid Illusionist + Mana Crypt

Bludgeon Brawl

Cephalid Illusionist

Mana Crypt

How it works

1. Activate Mana Crypt's equip ability by paying 0, targeting Cephalid Illusionist.
2. Cephalid Illusionist triggers, causing you to mill three cards.
3. Resolve the Mana Crypt ability, attaching it to Cephalid Illusionist.
4. Repeat.

This vintage-legal engine relies on the peculiar rules interaction of Bludgeon Brawl, which transforms noncreature artifacts like Mana Crypt into Equipment with an equip cost equal to their mana value—meaning {0} in this case. Because you can repeatedly target the same creature with this zero-cost equip ability, Cephalid Illusionist triggers continuously every time it is targeted. Each iteration of this targeting loop forces you to mill three cards, allowing you to mill your entire library into your graveyard with blistering speed.