Professor X

Whenever Professor X or another mutant enters
the battlefield under your control, you may pay {w/u}, if you do, scry 1.
{x}{r/w}{r/w},{t}: Put X cards from your hand on the
bottom of your library. Draw X cards.
{3}{u/r}{u/r},{t}: Discard a card. Reveal the top card of
your library, if it's a mutant card, put it into
your hand, and you may repeat this process.
If it's not, draw a card.