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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.
Abilities, attacks, weakness & resistance
Other cards from Mirrodin Besieged
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Knowledge Pool (MBS-111) is a rare artifact from Mirrodin Besieged that imprints by exiling the top three cards of each player's library when it enters the battlefield. Whenever a player casts a spell from their hand, that spell is exiled and the caster may cast a different nonland card exiled with Knowledge Pool without paying its mana cost. The card enables chaotic card-swap interactions and can be used as a combo engine or disruption piece in decks that exploit casting spells for value.
Catalog pricing data as of 21 Apr 2026, 05:33
