Incognito

Preface

Incognito allows its user to effortlessly hide their presence from the world. Enhancing skill related to stealth and subterfuge, this mastery is favored by thieves, spies, and assassins. Incognito also increases the user's skills in lock-picking and pilfering thanks to the increased agility.

Incognito also aids the user in combat by allowing them to use their environment to temporarily hide from sight. However, it is difficult to disappear when the user is actively being watched. Because of this, incognito is most optimal out of combat or before a fight.

Mechanics

Thieving	Lock picking into houses, tombs, or chests. Theives tools will will improve these skills. This skill set also comes with pocket picking / pilfering (non-monster targets).
Sneaking	Moving while being concealed and avoiding detection. Heavy armor and two-handed weapon will penalize the user of rogues due to noise and equipment unwieldiness.
Hiding	Blending into the environment, the crowd, or temporarily disappearing from view.
Subterfuge	Disguising through a variety of means.

Progression

Beginner	You can sneak and hide a little bit, but it's pretty inconspicuous.
Novice	You struggle to hide and keep quiet, but this will do. At least you're more mobile. Also, lockpicking is still difficult for you, but you can do it as long as you have ample time.
Trained	You can move well in the shadow and hide in all sorts of environment now. Locks are easier to pick.
Proficient	You can now sneak, hide, lock-pick, and disguise competently.
Adept	You can skillfully execute all of your skills with ease. You can now temporarily disappear from the open view whenever you choose.
Expert	You can do everything competently and move with grace, but faster. It's going to be very difficult to catch you.
Mastered	You can infiltrate most places, steal heavily guard treasures, duck in and out of combat. You are the master of shadows.