You use your knowledge of stealth and survival to make yourself a master of espionage and a valuable resource for those who wish to keep their hands clean in dirty situations.

Fade Out: You know how to make yourself scarce when dealing with suspicious or hostile beings. You can use your Stealth skill, not Deception, to create a diversion to hide. If you are trained in the Deception skill, you gain a +5 bonus to your skill check for the purposes of creating a diversion.
Prerequisite: Trained in Stealth

Keep Together: Whenever you are hit or missed by a melee or a ranged attack, you can move up to your speed as a reaction, provided that you end your movement adjacent to an ally. This movement does not provoke attacks of opportunity.

Prudent Escape: Whenever you reduce a target to 0 hit points or otherwise render a creature unconscious, you can choose two allies within 6 squares of you and within your line of sight. You and the allies you chose can immediately move up to your speeds as a reaction. This movement does not provoke opportunity attacks.

Reactive Stealth: When you are missed by a ranged attack and have concealment or cover from the attacker, you can move up to half your speed as a reaction and make a Stealth check to become hidden from your attacker, provided you still have concealment or cover at the end of your movement.
Prerequisite: Trained in Stealth.

Sizing Up: Once per encounter, you can make a Perception check against the Will Defense of a single target that is within 6 squares of you and within your line of sight. If you succeed, you gain a +2 insight bonus to all skill checks and attack rolls against the target until the end of the encounter.