LEGO Hero Factory MOC: Ryan Fissure

Fissure is a rookie who's being trained to handle an experimental extended-range melee weapon currently called the the WPL-45H.  The weapon features a bladed "stinger" on a tether that connects to a fuel-cell charged crystal capacitor on the wielder's back.  The stinger is whirled in a circular motion on a short length of tether to build up kinetic energy, then it is released directly at the target.  On impact, the tip triggers a pulsed electrical discharge down the tether and directly into the point of impact.  This can almost instantly disable a robotic target, stun a biological one without causing any actual injury, or disrupt an inorganic surface or structure at the molecular level, causing it to weaken and crack along the lines of electrical discharge.