Are you sure? Because thats a pretty distinct sprite feature. Lil Cal had it as a sprite too

Power beams seem to just come from being very powerful in general. Sprites have them in various degrees- Bec just produces it from his body, Nanna from the eyes. Davesprite doesn’t seem to be able to, though. But you could also mention Eridan’s Hope Beam when he’s fighting Sollux, Psiioniic beams in general, and while not beams, the Hope and First Guardian Energy Discharges Jade and Jade do to be similar things.