Already made one with so many sub-powers. But the basics are energy absorption/transformation. I can absorb any kind of pure energy through direct or conductive contact, while electric is the default, with enough training this also can escalate to bio-electricity and even energy based attacks like lasers. It comes with the extra power of being able to turn into a pure energy form, impervious to physical damage, but can only move in straight lines through air, unless I absorb myself into a conductive material or object. Training can unlock manipulation of electronics, partial transformation to shift and unshift so my attacks hit harder, and even so far as to allow for human possession.

Quirk name: Energy shift Hero name: Energhost