Skethros, Color Eater

Flying
Colorless spells cost {c}{w}{u}{b}{r}{g} less to cast.
Whenever you cast a noncolorless spell from hand, exile it instead.
Exile a card from your hand: Search your library for a Wastes land card and put it into your hand.
Exile a Wastes from play: return a card exiled by Skethos, Color Eater to it's owner's hand.