I recently introduced a new PC into the game I GM at a fairly high XP level. She is mainly a bounty hunter type, but she has pretty much completed the Marshal tree as well. The campaign is quite focused on intrigue right now.
So this character was involved in interrogating an enemy spy, and the spy had really high Deception skill (4 Yellow). I figured he would get at least one or two lies past this PC. Her Discipline skill is 2Y 1G, and (here's the kicker) she also has 3 ranks of Viligance. So the difficulty of his Deception checks was 2R 1P -- but *then* I had to add three automatic failures for Unrelenting Skeptic and the 3 Vigilance ranks.
I just kept failing over and over again. I even tried giving the guy some circumstantial boost dice later in the interrogation, but nope. Afterward I checked the statistics, and it turns out that adding automatic failures is an *incredibly* powerful way of making someone fail a roll. The guy needed 4+ successes to beat the Skeptic talent, meaning that even with his really high Deception skill he had only a 12% chance to succeed .
It turns out that even a character with completely maxed out Deception skill and Cunning 6 (!) has only about a 37% chance to succeed when lying to this PC . And this isn't anywhere near the maximum that Unrelenting Skeptic is capable of. If she spends another 20 XP on one further Vigilance rank, that Deception 5 Cunning 6 NPC would have only a 20% chance of getting away with a lie. With a fifth Vigilance, rank, it looks like the chance drops below 10 percent. And that's for someone who is rolling 5 yellow + 1 green!
I'm wondering if this talent might not be too good at what it does--at least in a campaign like mine where intrigue is important and it's sometimes good for plot reasons if an NPC can convincingly lie to a PC. I hate having to nerf PCs' talents, so if someone has a better idea please let me know. But my first thought is to have the talent increase difficulty rather than adding automatic failures. That still has a huge effect on the chances of a successful lie, but it doesn't make success almost impossible like the automatic failures do. (The player has already agreed to nerf the talent if I deem it necessary, and is very congenial about it, so there's no risk of trouble at the table, I'm just checking if anyone has better ideas about how to fix the situation.)