Your sense for stealth shows those around you how to evade notice. While you are hidden, enemies take a bane on tests made to search for you or other hidden creatures within 10 squares of you.
Additionally, you have the following ability.
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Triggered Action
Night Watch
A steely dagger from out of the blue knocks another weapon off course.
Trigger
The target takes damage from another creature's ability while you are hidden.
Effect
The target takes half the damage. You remain hidden.