Riven Skin Idea: Darth Revan (like KOTOR 2)

The sword would definitely be the tricky part (as her weapon is massive, it's a signature of Riven), though I think going for a Kylo Ren style would probably work (making it a little bit upsized but not overwhelmingly so for the non-ultimate).

The ultimate part, the sword would grow massively in size, and her suit would glow red with evil-like colors.

This is a star wars themed skin, call it Darth Riven, or something similar.

I am already tossing my money at screen, make it so.