Sacrifice Magic

Sacrifice Magic (マジックを生け贄に捧げます Majikku o ikenie ni sasagemasu) is an outlawed Dark Magic that involves the use of human sacrifices to empower the user. Currently, its only known user is Crom Cruach.

Description
Sacrifice Magic involves the use of human sacrifice to fuel one's magic and health. This is done by first sacrificing a human before activating the magic, this magic then absorbs the ethernano, nutrients, and other essentials of the victim to give the user enhanced strength, vitality, magic, speed, etc.
 * Enhanced Qualities: As stated above, the magic gives the user enhanced physical and magical capabilities, and can even extend the user's life.