Tibalt, Devious Trickster

+2: Draw a card and create a Treasure token. You lose 2 life.
-2: Discard a card, then draw a card. Tibalt, Devious Trickster deals X damage to any target, where X is equal to the discarded card's mana value.
-8: Exile the top three cards of each opponent's library. You may cast them for as long as you control Tibalt, Devious Trickster.