A talent in the Sentinel: Shadow tree, says that while you are under the influence of a force power you may take an action to cancel its effects.

This is not marked as an Out of Turn Action, and although has a remark about force powers that deny you actions, it dose not specify what force powers may or may not be nullified, and if the action is part of the allowed actions per turn.

Your thoughts?

The Action must be your “once per turn” action. The “you may” part is there so it’s clear you don’t actually have to do the escape trick if you don’t want.

I would expect the specific powers that this works against where left vague to allow for future new Force Powers. From the core book the two most obvious would be

Misdirect:the parts that alter your perception of reality

Influence: resisting the forced emotional state

Battle Meditation: resisting the Mastery Upgrade

then for some that are a little less obvious and more up to the gm

Seek: Perhaps you could shake off someone who has committed a dice to track you

Suppress: your gm may allow you to shake off Suppress if someone has committed a Force dice to the duration upgrade

Theres probably a few Talents that could be resisted too

Bind explicitly deprives you of Maneuvers so I think it would work against that as well, and Move I think could conceivably be used to effectively deprive you of certain actions (lifting you above the ground so you can't move yourself). Whether the latter falls into the realm of Slippery Mind tho is probably more up to your GM, as you could still act in place under the effects of Move. Shooting, reloading, use a Skill or Power, etc., using certain types (most?) Actions and Maneuvers.

It's one of those talents that's really awesome when you need it, but doesn't come up that often. I've a character that just passed 1000 xp recently, and has never gotten to use the talent.