Shade, Echo of Regret

Shade, Echo of Regret begins the game in your graveyard, and its power is equal to the number of creature cards in your graveyard.

When a creature named The Knight, Perfect Vessel dies, return Shade to the battlefield.

When a creature named The Knight, Perfect Vessel enters, destroy Shade and create a Treasure token.

Partner with The Knight, Perfect Vessel (You can have
two commanders if they both have Partner.)