|“||Triggers the effects of your Emblems when you use your Ultimate Ability.||”|
— Item Tooltip
Vial of Unleashed Power is a vial which can be bought from Weaver of Wonders for 695 Fragments of Wonder in Golden Vendor Ship. It starts with no charges but increases with higher Mastery. The highest flask count is 3 (or 6 with the Knight Subclass maxed out). This vial will restore 50% your health.
This vial's special ability is that it automatically triggers it's healing ability, and any emblems equipped, when a character uses their Ultimate Skill, and has a 10 second cooldown. The -50% Flask Capacity balances this special ability.