Talia, Nullifier Prime

+1: Counter target activated ability (Mana abilities can't be targeted). Return targeted card to the owner's hand.
-X: Counter target spell (with converted mana cost X) and exile all spells with the same name in the owner's library. Discard a card.
-8: Target card an opponent owns in exile, put all cards with the same name into your hand. The converted mana cost becomes colourless.