"Automatically attack and damage opponents that enter the field of effect. Hold RT/R2 to power it up. During the effect, your attack and movement speed are increased."
Godspeed (神速 - Kanmuru) is one of the Abilities available to use in Jump Force, and is one of Killua's abilities.
Overview
The user takes a stance. If the charge button is let go, they step forward for an elbow strike that knocks the opponent away.
If the user charges the move all the way, their attack power and movement speed are increased for 15 seconds.
Origins
One of Killua's Nen abilities is Godspeed, which allows him to use electricity in order to push his body beyond what it would otherwise be capable of.
Godspeed in action
Godspeed fully charged