Library of the Lost

Library of the Lost enters the battlefield with
5 Search counters on it
{4}{t}-Remove a Search counter off Library of the
Lost. Draw a random card from your library,
reveal it and exile it. you may cast it without
paying its mana cost, tap X permeants you
control where X is the converted mana cost,
those permeants don't untap during your next
uptap step.
Those who seek knowledge often get lost in its pursuit.