User blog comment:ElleRose/Dezeeree, the Chaos Shiv/Ability Details/@comment-10407034-20130604045533/@comment-5174587-20130604055449

It's actually invisibility similar to Shaco's Deceive. About the AP scaling, I think it serves similarly to a built in balancing mechanism. She'd be exceptionally OP with AD scaling since her innate alone could net nearly 2000+ Damage with IE and SotD alone.