Sarouman of Many Colors

Hexproof
Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)
Whenever you cast an instant or sorcery spell,
you may lose 1 life, discard a card, and sacrifice a
creature or land, if you do so, search your
library for an artifact or enchantment card and
put it into your hand. Then shuffle your
library.