Darkness (command)

Darkness is an ability and a moveset from the Final Fantasy series, associated with the Dark Knight job. It should not be confused with the job's recurring Souleater ability, which deals damage at the expense of life.

Final Fantasy IV
In the Nintendo DS and iOS remake version of Final Fantasy IV, Dark Knight Cecil's Darkness, has a different function than his trademark Souleater. When used, the character enters the Darkness status, casting a dark aura for three turns on its user. While in this state, the character's attack power doubles, and all of the character's attacks are of the darkness element, but they will lose 10% of their max HP for a successful hit. Any character can learn Darkness as an ability, provided the player had stolen the augment off Odin.

Final Fantasy Tactics
In Final Fantasy Tactics, Darkness is the moveset of the Dark Knight job. It includes draining abilities as well as powerful damaging attacks based on the user's HP. Darkness abilities require an equipped Sword in order to be performed.

The amount of HP/MP drained by Sanguine Sword/Infernal Sword is as follows:
 * $$0.8 \times Physical Attack \times (Weapon strength + PWR)$$

The amount of damage done by Crushing Blow is as follows:
 * $$Physical Attack \times (Weapon strength + PWR$$

The damage for Abyssal Blade and Unholy Sacrifice is as follows:
 * $$(Physical Attack \times Magick Attack \times BF Factor) + (0.33 \times Max HP)$$

The BF Factor that determines damage for Abyssal Blade and Unholy Sacrifice is:
 * If using a knight's sword: (Bravery/100) [damage reduced if Bravery < 100]
 * If using a fell sword:([100-Faith]/100) [damage reduced if Faith > 0]
 * If using a regular sword: 1