Serithila, Box Diviner

Ward {3}
At the beginning of your upkeep, reveal the top
3 cards of your library, you may exile one of
them, then put the rest on the bottom of your
library in a random order. You may play that
card this turn, and you may spend mana as
though it were any color to cast it.
Whenever you cast a spell from exile for the first
time each turn, copy it, you may choose new
targets for the copies.