Proteus Staff is a rare Artifact card from Magic: The Gathering (Mirrodin, MRD). Current market price: $3.38.
Rare
Mirrodin (MRD)
{3}
Mana Value
3
Card Text
{2}{U}, {T}: Put target creature on the bottom of its owner's library. That creature's controller reveals cards from the top of their library until they reveal a creature card. The player puts that card onto the battlefield and the rest on the bottom of their library in any order. Activate only as a sorcery.
