Dark Attack is a reference to the Weapon Augment system in FFX, in which weapons could be given additional effects (Such as inflicting statuses like blind, elemental damage, or other effects during or after battle).
"Dark Attack," Wakka's ability, is not a reference to the weapon augmenting system. It is straight up the name of Wakka's first native ability in his sphere grid path. He also has Silence Attack and Sleep Attack, for example — they aren't weapon abilities.
"Dark Attack," Wakka's ability, is not a reference to the weapon augmenting system. It is straight up the name of Wakka's first native ability in his sphere grid path. He also has Silence Attack and Sleep Attack, for example — they aren't weapon abilities.