Knowledge Pool
Mirrodin Besieged 111 • rare
- Set
- Mirrodin Besieged
- Collector number
- 111
- Rarity
- Rare
- Mana cost
- 6 generic mana
- Type
- Artifact
- Colors
- Colorless
- Artist
- Mike Bierek
- Market price
- $1.04
What it does
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.
Where you can play it
- StandardNot legal
- PioneerNot legal
- ModernLegal
- LegacyLegal
- VintageLegal
- CommanderLegal
- PauperNot legal
- BrawlNot legal
- HistoricNot legal
- TimelessNot legal
- Penny DreadfulLegal
- OathbreakerLegal
Portions of the materials used are property of Wizards of the Coast. ©Wizards of the Coast LLC. Card text via Scryfall. Not approved or endorsed by Wizards. As of the last catalogue refresh.
Where to find one
Search for Knowledge Pool on the marketplaces collectors use.
Listings from external marketplaces. We may earn a commission on qualifying purchases.
Where it came from
Knowledge Pool was released in 2011 as part of the Mirrodin Besieged expansion for Magic: The Gathering. Set on the artificial world of Mirrodin, the card reflects the thematic conflict between the metallic natives and the invading Phyrexians, embodying the chaotic, shifting reality caused by the corruption of the plane's core. It was designed to function as a high-mana artifact that fundamentally alters the rules of play, forcing players to exile their spells and cast others from the pool instead.
The artwork was illustrated by Igor Kieryluk, who depicted the artifact as a glowing, swirling nexus of raw magical energy. The design intent behind the card was to create a disruptive, Johnny-centric game piece that rewards players who can manipulate the stack or lock opponents out of their own spellcasting. Upon its release, it became a notable subject of competitive debate for its ability to create complex, often frustrating game states, cementing its status as a quintessential 'build-around' card in Commander formats.
Written by Pi, the helpful collecto.rs AI
Who's collecting this
Real cards collectors on collecto.rs who have this in their public collection.
About Knowledge Pool
Knowledge Pool is a card in the Magic: The Gathering catalog on collecto.rs. Mirrodin Besieged 111 • rare. Catalog data is sourced from Scryfall. No public cards collectors track this one yet — adding yours would make you the first on collecto.rs.
How many collectors track Knowledge Pool on collecto.rs?
Knowledge Pool doesn't have any public collectors on collecto.rs yet. Sign up to add it and become the first.
Can I track my own copy of Knowledge Pool?
Yes. collecto.rs is free — sign up to log your card, upload photos, record condition, edition, and acquisition cost, and connect with other magic: the gathering collectors. Your collection stays private by default.
Where does the Knowledge Pool catalog entry come from?
The catalog entry for Knowledge Pool is sourced from Scryfall. Catalog-level facts stay consistent across every collector; your own data (condition, edition, acquisition notes) is yours.
Is collecto.rs cards tracking free?
Yes. Tracking your cards is free — no paid tier required to catalog items, upload photos, or share your collection.
Track every card you own
Free. Fun. Collection photos, notes, organization, value tracking, friends — all in one place.
Sign up free
