It's really an all out dps fight. 10 boxing goes fine with 2-3 dead (tank plus others being "mirrored" by the boss).
The combat is so mobile that you have to rely on your dps. I just pull him with tank and place the group at max dps range. Even both healers are dpsing just some initial aggro on tank.

Adds despawn when boss dies.

For those haven't tried yet, mind that as soon as you open door he aggores, so set everything up before

The pet is for everyone, the best part is the 2 badges Guitar/axe is fun.