Horcrux

The Horcrux is a War Mode accessory that, when equipped, you will not die until it is destroyed.

Stats:
Dropped from any NPC (0.05%)
 * +50 defense
 * Has 1,000 health
 * When equipped, -50 health (will regen back)
 * You will not die while this is equipped
 * Will be instantly be destoyed by a Basilisk or Cursed Fire
 * Tooltip:  'You have commited an act of great evil'
 * Can only have seven in total

Trivia:
This is a direct refernce from the Horcrux in Harry Potter.