When performed, the user holds the sword up and slashes diagonally, buffing it with black flame. Doing so will add 145 Fire damage for roughly 45 seconds.
This skill is useful for adding more damage to the weapon when facing particularly tough opponents. Of note, since it adds Fire damage it is capable of inflicting stagger on enemies that are weak to the element such as Birch Women and Pus of Man.
It should be noted that the Onyx Blade itself deals innate Dark damage, and thus this skill adds a third source of split-damage rather than augmenting an existing element. As such, it is not quite as effective as one would otherwise believe, though it still adds additional damage and pyromancers will have no shortage of FP to cast this skill.
Hitting an enemy with a two-handed weak attack, and then performing the skill immediately after, will result in a true combo that inflicts high damage while also buffing the weapon.
- Equipping a Lingering Dragoncrest Ring will not increase the duration of the buff.