It's not Stunned 1 (At least from what I was told), it's Stunned. Stunned without a number attached means they lose all of their actions for the listed duration.
You didn't get what I meant. I know its Stunned (no save) for 1 round. I proposed it be changed to Stunned 1. My proposal was that it could also replace the usual crit effect that weapons come with. As a further balance point.
The closest comparison to crit specialization effects would be Brawling, which can make a target Slowed 1 for 1 round if they fail a Fort save against your class DC. So Brawling effects anyone but allows a save and only takes 1 action. This Ancestry thing effects fiends only but allows no save and takes all actions.
That's still busted. Just because it's limited in creature type doesn't make up for the ridiculous discrepancy. IMO it would be appropriate to make it Stunned 1 with no save instead of Stunned for 1 round. I don't think anyone would object to that. It drops the save allowed but is type-specific.
Actually it being limited to creature does in fact partially make up for the power, due to making it conditional. With that said as it is now it need a Fort Save OR it needs to be toned down to Stunned 1. That was my point in the first post. I see we agree on that.
NOTE: Okay, the above post is based on two notable misconceptions. First, I somehow misread the original mention of this Aasimar ability and thought it stunned fiends if THEY crit YOU, kinda like how armor of x material sickens y creatures if they crit you. That said, you stunning them if you crit them is probably even more broken.
The second, I misread the quoted post. I thought it was saying that this ability (As I thought it was before I realized my mistake) was fine, and that it should be compared to crit specialization effects as a balance point. Hence why I was comparing to the effects of a similar crit ability.
TL;DR The ability as it is is still absolutely broken IMO, perhaps even...
Yeah I realised you got it wrong, maybe I should have been clearer (I was tired yesterday, should have been more orderly in my response). Lets just take it easy with the superlatives. Yes is its very strong if situational and yes it needs some revision but absolutely broken is a strong word.
Either we both agree the ability needs a save (Fort) or be tonned down to Stunned 1. Either works well.