Tricky

It has no bestiary entry it seems.

Depending on the direction the character is pointed and the 'frame' of the attack animation the blue-white energy effect either encapsulates the fist, is at a 90 degree angle or just a plane 180 degree angle from the fist as shown below. In most of the animation frames, one hand's effect will be at the correct angle where it points in the same direction as the fist, while the other hand is bugged. It looks kinda off.