Applies the Attack Speed Increase effect, stacking up to +15% for a maximum of 10 sec, when using the following skills:
(Effect nullified during cooldown)

- Line Breaker, Rising Slash, Oblique Rising Slash, Fling Kick, Twin Rising Slash, Mark of Judgment, Flow: Impelling Slash, Flow: Shoudersmite, Combo: Crushing Descent, Combo: Bone Breaker, Impelling Thrust, Impelling Slash

While using the chain skills below, Unshakable Will activates for 5 sec. During Unshakable Will, you can chain into the next skill even if you use Vanguard Chase, Armor Crush, Flow: Divine Opening, Bladewall, Poena Divina, Impelling Thrust, Impelling Surge, Crossing Slash, Horizon Slash, Grave Sundering, Culling the Dead, Horizon Cleave, Horizon Whirl, Impelling Crush, Iudicium, or Combo: Wrenching Impale. The effect ends after Chain IV.

Unshakable Will Chains:
Chain I - Line Breaker, Rising Slash, Oblique Rising Slash, Fling Kick, Twin Rising Slash, Mark of Judgment
Chain II - Flow: Impelling Slash, Flow: Shoudersmite
Chain III - Combo: Crushing Descent
Chain IV - Combo: Bone Breaker