Subulety should get subterfuge (it's being removed) during combat somehow. Maybe as a proc, or a finishing move to replace slice and dice or kidneyshot.
Maybe some cooldown that allows subtlety to act as if stealthed, like 8 seconds per minute of ambushing goodness.
Sounds good.
A witty saying proves nothing.
-Voltaire winning
plus ça change, plus c'est la même chose