Baku, Dream Stealer

Baku, Dream Stealer is all colors.
When you cast Baku, Dream Stealer, you may
search your library for a legendary creature
card with converted mana cost {x} or less and
exile it. Baku, Dream Stealer comes into play
as a copy of that creature. It gains "You can't
cast spells that share a color with this creature"
and "Sacrifice this creature: scry 1."