In my opinion OP is just trying to get FFXI mob mechanics pasted over here.
Keep in mind XI mobs were "challenging" because the solo player is so weak - even an "evenly matched" crab can own you if you do not know what you are doing. (that's before XI raised the lvl cap, and yes i saw a JP paladin in full abjuration gear died to a crab in kuftal tunnel solo)

Also, we are errand boys/girls of light, slayer of elder primals and saviors of Eorzea many times over. I certainly do not expect to get killed by a giant toad or some flying cabbage while taking a stroll thru a forest thank you.