![Knowledge Pool [Mystery Booster]](http://joshscards.com/cdn/shop/files/bf4b3188-477d-5b8f-a278-9fde7a5fe39a_42b3870d-9f68-4ed1-82fd-150dd8714a02.jpg?v=1724270994&width=672)
![Knowledge Pool [Mystery Booster]](http://joshscards.com/cdn/shop/files/bf4b3188-477d-5b8f-a278-9fde7a5fe39a_42b3870d-9f68-4ed1-82fd-150dd8714a02_1024x.jpg?v=1724270994)
Description
| Set: | Mystery Booster |
| 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.
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.