Vantessa, Matron of Secrets

Whenever an opponent reveals cards from their hand or deck due to a spell or ability they control, they lose X life, where X is the number
of cards revealed this way.
{u}: Target instant or sorcery spell gains "Reveal the top two cards of your deck, then return them to the top in the same order."
{b}: Exile target card revealed from an opponent's hand or deck.