Forget about Sephiroth, there's a new fighter in town!
We talked about this mod a few months back. ShadowSnake is finally making a dream come true for both himself and all Krystal fans. In what is surely the most comprehensive Krystal mod for any Smash game to date, ShadowSnake's mod features a ton of detail work.
Based on the Dark Pit fighter, ShadowSnake's mod adds a Krystal model, new textures, Krystal's staff weapon, custom end screens, UI updates, a Kirby hat, Assault and Adventures outfits, and multiple color alts. There's even brand new voice acting and sound effects using clips from Assault and Adventures. (I helped!)
ShadowSnake says that this is only version 1, and future updates will further improve things. The goals include custom animations and attacks, more Krystal-like shields, and other stuff. In the meantime, you can download the mod and instructions from GameBanana.