Description
| Set: | Mystery Booster Retail Edition Foils |
| 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.