I started solo'ing these guys at lvl 54 (I'm a feral druid) and went on and off solo'ing them till lvl 56 or so. The only ones that proved to be trouble were the tyrant devilsaurs due to their fear mechanic (which they always used RIGHT when i'm healing...jerks)...
I would go bear, charge, enrage, bash, and mangle him until I'm at about 3000 health or so and I use Frenzied Regeneration (I don't use too many skills b/c I like to have plenty of rage for this skill, 70-80 or so)...once he gets me back down to 2500-3000 health or so (maybe a little less if you are daring) I pop out, barkskin, healing touch, and then go back into bear for the kill. With mangle, it's pretty easy, imo. I'm 59 now, and still don't wanna go near the jerkbag tyrant devilsaurs alone.
I would go bear, charge, enrage, bash, and mangle him until I'm at about 3000 health or so and I use Frenzied Regeneration (I don't use too many skills b/c I like to have plenty of rage for this skill, 70-80 or so)...once he gets me back down to 2500-3000 health or so (maybe a little less if you are daring) I pop out, barkskin, healing touch, and then go back into bear for the kill. With mangle, it's pretty easy, imo. I'm 59 now, and still don't wanna go near the jerkbag tyrant devilsaurs alone.