Knowledge Pool Tweet Out of stock. $0.69 Wishlist Details Color: Artifact Card Text: Imprint When Knowledge Pool enters the battlefield, 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 another nonland card exiled with Knowledge Pool without paying that card's mana cost. Rarity: R Cost: 6 Card Type: Artifact Artist: Mike Bierek Name: Knowledge Pool Finish: Regular Card Number: 111/155 Set Name: Mystery Booster - Mirrodin Besieged