Blood Sacrifice

Blood Sacrifice: Official description: Exchanges 25 hit points for 50 spell points. How it actually works: Bood sacrifice works a little different then the official description. It actaully deals 38 untyped damage in exchange for 50 spell points. This damage is effected by dungeon scaling, so while solo you will generally see (roughly as dungeon scaling does vary from class to class) these values:
 * Casual: 7 damage
 * Normal: 15 damage
 * Hard: 20 damage
 * Elite: 26 damage
 * Epic/Raid/Solo: 38 damage

Found on:
 * Epic Twisted Talisman
 * Twisted Talisman