Knowledge Pool

Imprint — When this artifact enters, each player exiles the top three cards of their library.
Whenever a player casts a spell from their hand, that player exiles it. If the player does, they may cast a spell from among other cards exiled with this artifact without paying its mana cost.

EDHREC rank #6773

USD reference: $1.06 (~₱66.52) · Foil: $2.89 (~₱181.36)