Professional Investigator

Professional Investigator doesn't untap during your
untap step.
When Professional Investigator enters the battlefield, search your library for up to 3 cards and
then exile them in a pile with 3 Investigation counters.
{1}{b}, {t}, Remove a Investigation counter from the exiled card pile. You may pick any card from that pile and play it for its mana cost, minus {1}.

"Why search for clues when I already figured it out?"