Old Smoky is rumbling again... Could it be something to do with the black orb that has appeared near its summit...?
This bounty is available to complete after beginning Errand 131.
As with Moltaan, try to get behind him and attack his tail, doing as much physical damage as you can, as quickly as you can. Being behind him, you should avoid the majority of his attacks, so keep whacking away at him, hopefully canceling an attack and getting a gold glim.
When you see his Volcanic Roar or Tail Flail coming, be sure issue an All- Out Defense command, and afterward, help Esther heal if necessary, as they will both do quite a bit of damage.
Defeat it and you'll complete the bounty hunt, return to the Swift Solutions to claim your reward.