Madrin, Sightless Thaumaturge

Whenever you cast a noncreature spell, you
may pay {u}{r}, if you do exile the top card of
each players library, you may cast instant and sorcery cards exiled this way without paying their mana cost, if a spell is cast this way copy
it, you may choose new targets for the copy.
Noncreature spells cost {1} more to cast.