Have also only seen her 3 times in at least 20 hours of camping (pulling at least 6 of 8 ph's each cycle) so yea she's stupidly rare. However, Mistress of PITA has no freakin problem popping (can easily pop her once an hour if you wanted to) and she has just as many ph's if not more.
You got lucky. We've camped her for over 60 hours now and seen her 3 times. She has dropped boot and chest clays but is super rare.. or we've had super bad luck. By far the longest spawn of any UF names and we've camped almost all of them.
Aye we could have been lucky, or the recent changes to spawn rates could be affecting her. (I don't remember whether or not Conv was specifically mentioned in the patch notes as having increased spawn rates, but I've been flagged since a day or two after the zone came out, and the spawn rates for nameds seem much more common now.) I'd have to camp her more to know.
One thing that I do know is that I always keep track up when I'm in Conv, and nameds are popping much more frequently than they used to. Later in the evening I was camping First Floor for about an hour and I saw Armethys Keenslice pop twice on track. So whoever was camping her was popping her pretty quickly too. On the first floor we also popped the Punisher and Handmaiden in just a couple of clears.
It seems that Conv nameds are just much more common now than they were a few weeks ago.
So my suggestion to people thinking about camping her would be, give her a shot. It's great exp camp. And you're also less likely to get trained and KS'd in this camp than you are in some others (like the Summoner).
However, as Shuraz said, it is possible that we just got lucky =)
This is a very nice little camp for some group weapons and rings and the BP clay.
Location: As mentioned previously, she spawns at the very top of the temple. Just go to the very top then go down to the center. There will be a little island in the lava. She spawns there.
Camp: We camped down the stairs into the middle area, and then wedged in between a pillar and the stairs. That way we only had to deal with one roamer.
Repop: 21:30. I suggest setting a little stopwatch going so you don't have the roamer pop at the wrong time and eat you.
PHs: We spawned her twice in a couple of hours. She seemed pretty common. Both times she spawned from Bellikos mobs in that little island. Pulling: She's easy to split. Just keep the island clear. However, she DOES backstab, so don't let her get too close when you have your back to her.
Fight: She is a straight up tank and spank. The only casts one spell, which I'll mention in a second. She doesn't generate spawns or cast AEs, etc.
On the first encounter we had a tower / UF raid geared warrior, and the hardest hit on him was 8579. On the second encounter we were using a different warrior who was also tower / UF raid geared, and the hardest hit on him was 9841.
However, there is one little "trick" that she has. She casts "Poison Shock" every 5 seconds on the tank (or whoever she has agro on):
The stun itself is no big deal. But, as we found out on our second encounter, she also backstabs =). The stun happened to spin our tank and she popped off a 28294 backstab on him and dropped him.
Fortunately I (an 85 bard mostly tower raid geared) was able to tank her for the last 30% or so. She just doesn't hit any harder than trash except for her backstab.
Hope this helps!
She dropped the BP clay for us both times. She dropped the Roseheart Protection ring on the first encounter, and the Deathrose Stiletto on the second.