The Electrosphere Launcher is a Hardmode, post-Golem launcher that fires rockets to your cursor, then forms an energy-emanating ball of constant damage for approximately 8 seconds. An infinite amount of electrospheres can be summoned but they cannot overlap. It is very good for mowing down hordes of enemies in events in which mobs group together, or stationary opponents. It is very bad against quick moving enemies like most bosses, however.
The Electrosphere Launcher has an 11.11% (1/9) chance to be dropped by the Martian Saucer during the Martian Madness event.
Its best Modifier is Unreal.