I am very familiar with all of these kinds of stealths: Concealment, Escape and Evasion, Sneak, and Disguise. The only one I'm not so familiar with is Invisibility? What's the difference? Is it harder to be detected? Do you move faster?
Another question: Does the Master Shadow Grant give the "Stealthed" state?
Invisibility lets you move faster than in Sneak. However, it's a grant from the "Invisibility Belt" item, much like Disguise grant, and as such only lasts for a relatively short amount of time until it wears out.
There's only so much that can be said: invisibility is a level 17 ability I believe, so it shouldn't cost near anything to code up and toy around with to see for yourself.
