Eyleea, Mind Thief

+1: Target opponent discards a card, then puts a number of cards equal to that card's converted mana cost from their library into their graveyard.
0: Create a 1/1 blue Faerie Illusion creature token with flying and "Whenever this creature becomes the target of a spell or ability, sacrifice it."
-6: Each opponent exiles the top twenty cards of their library. You may cast a nonland card exiled this way without paying its mana cost.