There will be some cureable and incurable detriments you will need to either cure or suck it up and take the hit, but the one you do want to watch is the incurable curse. Each of the mobs has one of these and the people that get them need to move away from the raid or they will kill other members, if they are not near anyone it just disapates (we had them running to the table in the center of the room). If either of the tanks get the curse stack wards on the one who does not have the curse so they will survive.
We did have one of the tanks die now and again and the other was able to hold both so I doubt you really need two tanks for this mob. We burned one down and then the other, it seems if you do kill one before the other the remaining one will gain a stoneskin. You can still burn them down but it will take longer. The script on the dieing mob read "You have chosen the longer path", I took that to mean if you killed them both at the same time there would be no stoneskin.
Special abilities updated and some loot added.
I tanked them easily with pally 176 CM. Just tanked them where they stand near table. Just need to joust ppl with uncurable curses. If i have curse noone joust. U can turn on AOE blocker.
Both are certainly tankable by one tank with crit mit at 150+%. We tanked both in the corner closest to the end of the table closest to the door, with the MT and OT standing on the square with the names. The OT stayed high on the hate list to prevent the names from mem wiping to the raid. The raid stood in the diamond shaped area, just behind the names. When someone in the raid got the incurable curse, he jousted all the way up and into the corner, to just below the banner. When 2 people got the curse, they jousted to up the sides of the diamond to the wall. Any closer and the AoE hit the raid. If a tank got the curse, he jousted to the table.
There are short, incurable stuns and other affects of all sorts...definitely tests the patience of the healers. Thankfully the mobs don't hit too hard and the tank with agro should be able to joust out without dying if he gets the curse (although popping your emergencies doesn't hurt).
This is more an endurance fight for your healers than anything else. If you have reasonably geared tanks, people that know how to joust, and healers that don't panic, the fight will be long, but easy.
The tank swap happens once one of the mobs reaches a 20% marker, pretty predictable.
We kept them closer than 10% in health and did not get any stoneskin when one of them died.
Nice addition!