Master of Disguise
(Rule)Description: Shadowblade can deploy using the Hidden special rule like a Khainite Assassin. If he does so,he can change which unit he is hiding in at the start of any Movement or Close Combat phase.
If an opponent has an ability that forces you to state that there are 'idden'models within a unit, you only need to say that Shadowblade is hiding within a unit, but not which unit he is currently within.