Death Pact

Death Pact  is a basic  Death Knight  spell card.

 How to Get
Death Pact x 2 are given as a reward for raising a Death Knight to Level 2.

Golden Death Pact is a reward for raising a Death Knight to a high level.

Death Pact is soulbound and cannot be crafted or disenchanted.

Strategy
Death Pact can save a Death Knight from certain death, but it's most effective when it destroys valuable, high-health minions. This can be difficult, because tense life-or-death situations are often when powerful minions are most needed. If used well, Death Pact can be an excellent support spell in a Death Knight deck; but it requires careful analysis to play well.

Lore
Death Pact, in World of Warcraft, is a Death Knight talent that immediately restores 50% of the Death Knight's health, but absorbs all healing received (up to 25% max health) for a short time afterwards. In Warcraft 3, the Death Knight's Death Pact ability killed a friendly unit and restored health to the Death Knight proportional to the sacrificed unit's health.