| − | The Category 3 Attacker-class Siren-type Machina is an uncommon combatant characterized by their shield array and main role of underwater combat, as well as their bodies being adapted to aquatic movement. | + | The Category 3 Attacker-class Siren-type Machina is an uncommon combatant characterized by their shield array and main role of underwater combat, as well as their bodies being adapted to aquatic movement with strong, fishlike tails replacing their legs. They move very quickly and with great agility underwater, often aided by electromagnetic water propulsion systems. These systems can often perform double duty as levitation and atmospheric propulsion systems to allow the Machina some rudimentary ability to operate above water too. |