Narset, Knowledge Seeker

+1: Target player discards a card. If that card is a noncreature spell, you may draw a card.
-X: You may cast target noncreature. nonlegendary spell from a graveyard or exile with converted mana cost X or less without paying its mana cost.
-10: You get an emblem with "Whenever an opponent casts a noncreature spell, that player exiles the top five cards of their library."