Mollog

{3}, {t}: Create a colorless snow artifact token
named Icy Manalith with "{t}: Add one mana of
any color."

{6}{r}{g}, {t}: Look at the top four cards of your library. You may cast a spell from among them without paying its mana cost. Put the rest on
the bottom of your library in a random order.

(Svella, Ice Shaper)