From wow.incgamers.com

Statistics

Talent Improvements

Assassination Tree

Talent: Improved Expose Armor
Effect: Increases the Armor reduced by your Expose Armor ability.
Statistics: Rank 1 = +25%, Rank 2 = +50%.

Combat Tree

Talent: Surprise Attacks
Effect: Your Finishing Moves can no longer be dodged, and the damage dealt by your Sinister Strike, Backstab, Shiv and Gouge abilities is increased by 10%.
Statistics: N/A.

Subtelity Tree

None.

Threat Level

This skill generates High Threat.

Uses in PvP

Please feel free to add a bullet list of uses within PvP or editorial if you have more to say. What use is it against other builds, what skills can it be used to counteract or prevent. What skills does it work well in combination with.

Uses in PvE

Please feel free to add a bullet list of uses within PvE or editorial if you have more to say. Which creatures/bosses in particular is it useful against. What skills does it work well in combination with.

Other Facts

Add any additional facts about this spell that does not fit in to any of the above categories.