Gladiators defence unatainable?

Ok, so i'm a warrior/necro and i love the tactics. Naturally, i look for gladiators defence since its the best stance ever IMO, and guess what? I find it! But i still can't get it. In fact, i'm fairly sure nobody can get it. Why you ask? 2 reasons:

1) Its a stance. Stances don't show up under the name of the boss when they use it (don't know why, maybe so you can't cancel? Maybe cause you can go into stance during casting of another spell?) which means capturing is impossible.

2) Its an elite skill, so there's no buying it in stores or getting it from quests. I'm basing this on the fact that i haven't seen an elite skill in stores or quests so far.

I could be wrong, but thats why i'm posting this . If i can't see it under the bosses name how did i find it you may ask? Because i got hit with it. Several times, but it was a bittersweet pain really knowing not only that its out there somewhere but exactly where it is. Anybody else have any luck?

I've thought about that since fighting scorpions in Ascalon. You KNOW they are hitting an evasive stance (that 12 seconds of evading everything tells you duh :P) but you never see it appear under the namebox. Good catch, maybe we should petition about this.

Someone told me you can get it from facet dragon in dragon's lair... just spam your capture signet and you will get it.

Sweet it works, thx guys =) Just make sure you have everything else he does and it won't capture anything but that.