The troll mini bosses in ST can be solo farmed for
Atal'ai Spaulders. Which can be considered BiS pre raid for tanking bears due to the amount of armor. (I even found one with +20 fire resistance)
They can be quite hard to kill as they have insane abilities as heal, stun, summon demon, debuff etc. You can however stun them and I managed to kill the easier ones on my fresh level 60 druid with feral cat specc.