Casting a Martial Art Skill grants you one stack of Umbra. At 8 stacks, Umbra triggers a heavenly thunder to g…
Casting a Martial Art Skill grants you one stack of Umbra. At 8 stacks, Umbra triggers a heavenly thunder to grant you Thunder Enlightenment - Umbra: for the next 10 seconds, you gain Hyper Armor and 50% DMG Reduction, your Special Skill costs 80% less Endurance and deals 20% more damage.