Immortality is an ultimate Defence ability that requires a shield to use. When activated, melee, magic, ranged, and soft typeless damage the user receives is reduced by 25% for 30 seconds. If the user dies while the ability is in effect, they are returned to life, immediately cancelling Immortality. Immortality has a 30 second timer on the Buffs and debuffs bar.

When the user dies, an ethereal, blue hand appears and grabs the user, preventing them from falling down, immediately healing them for 40% of their maximum life points. While this animation is playing, the user becomes immune to all damage, similar to the effect of a short-lasting Barricade.

Upon being revived, the player receives the message "In a heroic stand you gain a second wind."

If a player wears a sign of life or sign of death or their variants while Immortality is active and they die, Immortality is consumed instead of the sign or portent.

Several bosses can bypass Immortality's effects; Vorago's push mechanic, Telos' instant kill anima bomb in encounters of 1000%+ enrage, Nex: Angel of Death's elemental instant kill attack and losing Solak during phase 4 of the fight.

In PvP, Immortality removes the Teleport Block spell upon resurrecting the player.

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