Here's a crack at a possible arcane spec. Critique/flame away.
Anybody have experience from 3.3 onward mage tanking? I'm looking for specs/tactics.
This is for fights like Keleseth on BPs, BloodBeasts on Saurfang or possibly even Rotface oozes, and no warlock is available (yes, the second tank should do it, but let's not go there please).
I'm thinking either a jacked up ice barrier spec or an arcane resist spec is the way to go. Any thoughts or references?
OK here is my frost spec and a hybrid frost/arcane spec. i could drop the replenishment for other points elsewhere.
Blood beasts shouldn't be "tanked" at all, by any class. The slowing effect in hard mode will make kiting impossible save for one blink. No amount of defensive talents will allow you to live through a hard mode blood beast melee swing, 10 or 25, and the 5 BP gain per landed melee swing makes it a bad idea all around. On normal mode, well if you need to kite a beast before it dies then your ranged dps seriously needs to pick it up.
Rotface oozes, again shouldn't be tanked, but rather kited. No reason a mage couldn't do it, no special spec required, just get aggro and haul ass. Ther is no way a big ooze should ever catch anyone and if it did, a 3+ stack big ooze one or two-shot a clothie.
Keleseth tanking I could see and have seen mages do, but again, no special spec really required, the orbs provide all the protection you should need. I suppose Magic Absorption, Arcane Shielding, Prismatic Cloak would be useful arcane talents, and you could get deep enough into frost to get ice barrier, but you'd be sacrificing the bottom half of the arcane tree. This spec takes all the survival and damage reduction talents of arcane and frost, but the DPS output would be serverely gimped.
Really though, you can do everything you mentioned, no special spec required.
Eventually we downed it by training the tank (after gritting through several wipes) on how to tank 10 man Keleseth.
As for the hybrid spec, it's similar to mine, but I agree, it castrates arcane too much, and i'm skeptical of it.
Insahnity, I think in the 40/0/31 talent spec you posted, it would be much better to go with 3/3 Prismatic Cloak over 3/3 Incanter's Absorption. Another good possibility is to drop points into Improved Blink, assuming it does effect the Shadowbolts.
Akebar, in general it is a very bad idea to have points into threat reduction if the goal is tanking.
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Your dedicated healer should be spamming you until you can get an orb or two. You can also tell your tanks to let you initiate the pull, precast a spell and back it up with an instant or two as you're running. Come to think of it, I did tank Keleseth on my mage as fire/ttw spec in an alt run last week or something. It was ten man normal mode, but fire spec actually takes 3% more spell damage due to the "playing with fire" talent.
As for keeping threat on Keleseth, set him up as a focus so he's easy to retarget and just keep hitting him with spells when you have a second. Ofcourse, I was fire when i did this so there is more threat/dmg from the living bomb and ignite dots even when I was running around grabbing orbs.
I went with IA over Prismatic because I was browsing the thread on EJ about this, they mentioned that IA and FW were mandatory talents. Of course, they were also applying this to Sindragosa.
I used This spec while caster tanking as a mage.
Frost spec to pick up handy things
-Frozen core (6% damage reduction)
-Ice Barrier Survivability CD
-Water Elemental (fights off Beach balls)
-Arctic winds (5% chance to not get hit)
-Magic Absorbtion (more spell armor)
-Arcane Shielding (more spell armor)
[Today 06:48 PM] Ion:swimming in a natural body of water ISN'T acceptable...it's momentarily tolerable
We didn't have a warlock available on our first kill, so our mage stacked PvP Gear, with shadow resist, and tanked him. I don't remember if she changed her spec for the fight, but I know she had a killer amount of stam, so that the Empowered lance wouldn't 1 shot her.
I'm an alt-oholic. I'm ok with that.
I'm an alt-oholic. I'm ok with that.
It's not that hard as long as the rest of your raid knows how to do their jobs.
I'd advise your tanks figure out how the MT takes Val and Tal and the OT takes Kel, or you get your mt and ot on val and tal and get a dk to tank Kel in frost presence. As a mage, if you have to tank the orbs, something is wrong with your raid.
Not DPSing Kel isn't an option. Threat isn't an issue - we did it with shadow priests, mages, Dks, locks and probably someone I can't remember (pally?) before our tanks were geared enough and skilled enough to tank 2 of them at the same time.