As for how I am able to walk on water, it is thanks to my antigravity technology. The same technology that allows Legion to fly around without any sort of wings or engines.
In an alternate reality, Legion actually flies around as a highly reflective sphere of random dimensions, and the sphere could be as small as a marble or as big as a planet, thus giving Legion a very alien feels just like I had wanted.
That is all to bring maximum terror or bewilderment or both. People are naturally more fearful of what they do not understand or comprehend.
Obviously, the ability to fly by manipulating gravity isn't as speedy as using actual engines to produce necessary lifts and thrusts like an airplane would, but it is a lot more convenience due to lack of moving parts.
