Wow - Solo Monk - Castle Nathria (Mythic mode) - Sire Denatrhius - 10.2 

This boss is hard because of damage of a tank's debuff that we can kite but we haven't time for it. Another gear-boss.
I decided to use a tank's spec here for this reason.
We need to ignore almost all mechanics here and damage a boss because we haven't time for them.
Just hit, hit and hit this boss and believe that he won't to kill u.
I don't know that to say here but i think that the next patch will better for a DD-specs who hasnt tank's pets.
It' all)