End game 5 man comps

[Apatheist]

I have around 5k health and I still drop super fast vs 2 combined melee

Are you SL spec? I'm SL/affliction and melee are a complete joke. I've wiped multiple parties outside dungeons or in the world with my warlock team without much trouble. Mages do have superior AE damage but they're also extremely squishy. When you stack 2 DoT's on 5+ targets from range there's no way a priest can keep up with that many dispels while also healing.

I do like the idea of mages burst potential in PvP but, as I said in the thread I created, I don't feel like they're capable in PvE. They're great at AE farming low-mid tier dungeons but once you get up to higher level content where bosses like Kromcrush or Rattlegore are immune to slow and hit hard I feel like a mage will get 2 shot.

Might be possible if you spread out and cycle ice block to juggle aggro but it seems unreliable. For one thing, a fight like Kromcrush doesn't have room to spread out. He has around 28,000HP. Your mages will hit around 600 per frostbolt in phase 1 preraid BiS so you'd need to survive for around 30 seconds, not counting adds, to kill him.