Would an Elemental Shaman be one of those classes? I tried such a thing recently (not with this app) using The Vortex Pinnacle. Whilst I was able to skip the trash and get to the first boss, it could attack me despite being high in the air AND being underground/through terrain.
I still don't quite understand how one player could solo dungeon bosses, or even raid bosses for that matter. I'm willing to believe the statement. I just need to know how it can be done.
So, if you or someone could fill me on how solo-ing bosses is actually done, then I would be so grateful for it.
