Knowledge Pool [Mirrodin Besieged] Undead "Belief is the strongest mortar

"Belief is the strongest mortar

but banish it when this card leaves the field

While a monster is face-up on the field

Set: Fists of the Gadgets Card type: Effect Monster Rarity: Super Rare Attack: 1500 Defense: 1000 When this card is Normal or Special Summoned: You can Special Summon 1 Level 4 Machine monster from your hand

sacrifice Breeding Pit unless you pay {B}{B}

Knowledge Pool [Mirrodin Besieged] Undead "Belief is the strongest mortarSet: Mirrodin Besieged Type: Artifact Rarity: Rare Cost: {6} 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 a spell from among other cards exiled with Knowledge Pool without paying its mana cost.