Eternal Soul
From Miners Settlement - Game Wiki
Eternal Soul is an item purchasable at the Summoners Wall for 25 Sacred Soul Stones (10 when purchased via the daily trades). When the player is near a Guild Boss they get the option to spend an Eternal Soul to attack the guild boss once. Doing so will give the player a 15s time frame they can use to damage the boss. There is no limit on the number of attacks a player can do on a guild boss
Created by: Lagopus