Nicol Bolas, the Dictator

+1: Target player loses 2 life unless that player sacrifices a creature. Then repeat this process for an enchantment and a planeswalker.
-X: Nicol Bolas, the Dictator deals X damage to each creature target player controls.
-8: Search each player's library for a permenant card and exile it facedown. You may cast those cards without paying their mana costs.