This item does not occupy the pocket slot, therefore allowing the use of a pocket slot item such as a god book or scrimshaw.
If a player has a portent of life in their inventory while the ability immortality is active and they die, the ability is consumed instead of the portent.
The Assist System cannot be used to create a portent of life.
Originally, the cooldown of this item counted down during in-game time. Due to many player complaints regarding how players were forced to stay one hour in-game longer than expected just to remove the cooldown, this was changed on 13 November 2017 so that the cooldown would count down even when the player was logged out.
Prior to the 26 January 2015, portents and signs of death could damage reflect immune monsters. Despite healing less health to the resurrected player, they were preferred over their life counterparts because they could inflict damage on high-level bosses.