Tyon, Requisition Inspector

Vigilance
Whenever an opponent puts a card into their
hand from their graveyard or library if it wasn't
drawn, exile that card instead. Return it to it's
owner's hand at the end of turn if it is still in
exile.
{1}{w}{u}, {t}: Investigate, then you may shuffle a
card exiled by Tyon into it's owner's library.