Guild Wars 2

So I tried arah yesterday and the lupicus dog guy was freakishly hard, my grp couldn’t down him I have 2.2k power 20k hp and 1900 armor, I’m a necro. My question is what would be the best easiest grp comp to down him and what should be minimum requirements stat wise for this dungeon

Well i cleared the ini now 2 times and the dog is hard at the beginning but its just a survival fight, nothing else. (and i cleared it with randoms, not guild or friends)
What u need at least is, ~15k HP nothing else, the only hit u are allowed to get is the rnd bold when he target u. AoE no go, invis charge also no go

First, before trying to kill him check if anyone has pets of any kind.Why? Because this boss higly purges you for having a pet. How? Well, those grubs that he does right on top of a random player that you have to kill before it reaches him during phase 1, can (and they will if) spawn right on a pet that is on his melle range. So what happens is that the grub spawns and gets insta eated.When you got him pusehd to phase 2 kite him out of his room, to that big one with adds before him (clear room first).Then dodge/die/run back.