Aquan Killer is also known as Aquatic Killers that increases physical and magic damage against aquan monsters. The aquan killer passive abilities can be found in various types of equipment, materia abilities, and unit buffs.
As with all killer passives, players can gain extra damage boosts when the units have been maxed out.
Sometimes it may be beneficial to swap in a aquan killer item in place of a raw damage item that may provide little to no additional damage.
To find the killer gear for the aquan race click here to open the Killer Gear Finder