Tesla

An Estellion fortress orbiting the sky island of Luna. Tesla served as the last stand of the old Estellion Empire before Mihli Lilty took power. The fortress was equipped with single, large Tesla Plasma Cannon, which would shoot a multi-arcing blast at a direction. The downside of the cannon was it's 30 minute timer between every two shots, to exchange the coils out, as the coils would over-heat after two shots.

Battle of Tesla (Fall of Tesla)
During the Pillar Alliance assault on Tesla the fortress was able to sink four fleets before being overrun by the alliance forces, which then proceeded to attack the nearby sky island and fortress, Luna.