Only appears during the Everquest Anniversary period each year(~March 16-April 26). Can spawn upon the death of a shrouded bat anywhere in the zone, not just on the 7th floor.
This witch casts a lot. She is very MR. Has quite a few HP. No parser so not sure but encountered her 3 times. 68 ench and druid ... wipe was on 6th floor at Mirror Platform to Valsheer's area. 68 Ench and 65 Cleric .. was on 7th floor in the Bat Spawn area. Invis'd up and looked for the bat that was SI ... found it .. Fabled Spawned. Darn Magi Curse with spin stun ... ouch ... Also casts the dot and mez .. will update upon next encounter. Third encounter was 71 Cleric and 68 Druid .. cleric was at 50% health and less than 50m .. Druid was at 25% health and 20m .. succored out when stun wore off.
Suggest taking a couple melee to beat her down ... Slow might work, but since she casts a moot point. Could try to mana drain her but doubt it would help. She does not see through invis. Cleric and Druid were Camo'd and able to go upstairs and pull her into the hall way to keep adds from below. She also has a pet if allowed to bring up.
As I said, will update on next post as to the exact spells she casts.
Okay, I just solo'd Tserrina. I am a 68 Mage with 370 AA points. I had Conv. and KEI on pet and self ( have Pet Affinity ). Pet was buffed with only the buffs that I have for him. No extra buffs. I used Child of Wind with two Staffs of Northwind, although that might have been a mistake since I did not notice stun landing on her.
She resisted every spell I threw. Malosinia and the Mage dots never landed. Did not try Bolt of Jerikor ( main nuke ) as I needed to save mana to heal pet. What it all came down to was she and pet in a toe to toe with me healing pet and praying. I used my AA Replinish Companion once. It did not become available again during the fight. I also sent in my AA Elemental Swarm. I have it maxed to nine pets and it lasts 45 seconds.
In the end I had to commit to win or die. My mana was so low I had to decide to use last of it to heal pet a couple more times or gate out. But she was down to two blue tics so I committed to healing pet. Fortunately it worked. He killed her and had about two blues left. I was oom. If I had to do it again ( knowing what I know now ) I would not have wasted mana trying to Malo and DoT her. Might not have been so close.
Pet was hitting her for an average of around 60 but hitting her fast. He has Flurry AA and Crit AA.
She dropped the robe and some other stuff that I did not need. Already had her key.
I got her to spawn in the first room past the fake wall. max hit was 615, but casts so much that she didn't have much of a chance to attack. I soloed her with a 70 pally, but it would have been close if she actually attacked more.