Increases the damage multiplier in the formula [Skill Level x4 + Remaining SP/100] for [Asura Strike] by 2.
When refining reaches +5, Max SP +100. When refining reaches +10, [Hell Gate] deals an additional +5% damage to small and large targets and you gain 100 Max SP. When refining reaches +15, [Hell Gate] deals an additional +10% damage to small and large targets and you gain 200 Max SP.
[Sura Rampage] + [Staunch Clothes X] + [Staunch Ring IV] (or [Ring of Loyalty]): Grants [Hell Gate] Dmg +5%.
[Sky Smash] + [Staunch Clothes X] + [Staunch Ring IV] (or [Ring of Loyalty]): Grants [Hell Gate] Dmg +5%.