Starfield Dreamer

Psychic (If this creature would deal combat damage
to a player, instead, that player puts that many cards
from the top of their library into their graveyard.)
Once each turn, you may cast a nonland card
from an opponent's graveyard. If it would be
put into a graveyard from the stack or the
battlefield this game, exile it instead. You
may spend mana as though it were any
type to cast spells this way.