[@Queue13]

You're ability makes it sound more like you have a "Crit Chance" to essentially force them not to fight and reveal information against their will. What if say, you get an outlaw who wants to kill you? What sort of sense does it make that you get lucky and suddenly that outlaw doesn't want to kill you and for some reason wants to have a joyous conversation with someone he didn't consider more than EXP fodder?

To put it in this perspective, use it on a player character. Assuming a "Crit Chance" occurs, what compels the opponent to actually want to talk and not say, resume combat? Even if the chance is rare, the fact of the matter is that it's an ability that, if/when it works, will force other characters (NPC's or not) to do something they themselves would not want to do under normal circumstances. If I wanted to kill you, you'd essentially have to control my mind to change that opinion from going from killing you, to telling you vital information that I really have no reason to tell a complete strange I'm trying to murder.

Now if this was a more illusion based ability it might be more understandable, but also understand that illusions have always been one of those hit-or-miss things where either it works flawlessly (Which some people might see as OP) or barely works at all because there's a way to see through the illusion, and I can pet you that people will see through the illusion. Give them some means to resist and they will assume they have it, or leave some sort of thread and they'll spot it almost immediately. 

Your ability, as is, would require a lot of collaboration and consent from the other Players (And even for NPC's like outlaws, you'd need to ask the GM's since we control all NPC enemies) for it to work out. Because it's not exactly free will if, given the chance, they can't say no.