Harlequin Tutor

Reveal your library and exile a card facedown.
Target opponent chooses a land card and a
nonland card from your library. Exile those
cards face down and shuffle your library. Put all
cards exiled with Harlequin Tutor on top of your library in a random order.
"Ever tried. Ever failed. No matter. Try Again. Fail
again. Fail better." - Samuel Beckett