BrM took me like 200 attempts at 905 ilevel before they nerfed the tower in week 3. I race changed to BE to make it easier. Probably 2nd hardest challenge unless you're geared enough to cheese it (3 face palm relics + chest +shoulders) also use niuzao to tank for you if you need to.
I only have resto druid left and I don't care enough about that skin to farm up nethershards.
Yeah I haven't gotten any legendaries yet aside from the ring from argus quest. I doubt I will get any if I do get some ilvl I am sure I can cheese it as I said I am not familiar with monk at all literally a few hours play time on it. Still I am sure I can either get a few more ilvl or just give some more tries. Since I am getting to phase 2 I know it's just a matter of things lining up. Still Kruul is one of the harder mage towers.
When you compare it to something like the Survival hunter challenge another spec I didn't even look at or talent before I did the mage tower but goddamn Surv hunter is so easy a goddamn blind chimp high on meth and PCP would 1 shot that shit.