Thought Prison is a uncommon Artifact card from Magic: The Gathering (Mirrodin, MRD). Current market price: $0.23.
Uncommon
Mirrodin (MRD)
{5}
Mana Value
5
Card Text
Imprint — When this artifact enters, you may have target player reveal their hand. If you do, choose a nonland card from it and exile that card.
Whenever a player casts a spell that shares a color or mana value with the exiled card, this artifact deals 2 damage to that player.
