Thri-Kreen Racial Utility 6Chameleon Chitin
Your powerful mind can rapidly change your exoskeleton to match the light and objects around you, allowing you to gain the advantage or slip away from the fight.
Minor Action Personal
Effect: You make a Stealth check. If you have any cover or concealment, you gain a +5 power bonus to this check. You can remain hidden without cover or concealment as long as you make no attacks and you take no action that requires you to make another Stealth check.
Published in Dragon Magazine 411.