Dark Pact

Dark Pact is a level 75 warlock talent. It is useful for survival, dealing 25% of your demon's or your own HP to give you a shield their maximum HP assuming that there is a half to be sacrificed. It is the possible replacement of the voidwalker's Sacrifice.

Trivia

 * During the MoP beta, it had the flavor text "Let someone else pay the price of your recklessness." by Zelifrax Wobblepox. It becomes available to warlocks who complete the green fire quest chain.
 * Sacrificial Pact is a basic Warlock spell in Hearthstone. The flavor text reads: "This is the reason that Demons never really become friends with Warlocks."
 * Dark Pact is a common Warlock spell in the Kobolds & Catacombs expansion for Hearthstone. The flavor text reads ""Don't worry about the fine print. Just sign here."