- Always keep someone in his melee range. If necessary dump a fire elemental or a skeleton or some other summon at his feet and make sure it keeps following him no matter what. In case no one is close to him he'll use that damn meteor shower which usually spells trouble, if not instant death.
- Braccus melee damage is manageable, his spells are not.
- The ghoul is the nastiest of the bunch. He tends to set up a very mean 1-2-punch with the fire elemental, dropping poison on you that the elemental detonates. If possible send him a fireball immediately, as long as he still stands in his ooze. That detonation will hurt him badly.
- One great strategy is to immediately focus down the fire elemental with everything you have (whilst keeping Braccus under control, of course), and then use the Teleportation spell (Aerotheurge) to dump the Baron of Bones and the Ghoul into the lava puddle he leaves behind. This will kill them instantly.
- Keep Braccus alive for last, he has by far the highest HP and is more of a nuisance to kill than the others. Go for either the Ghoul first or, if you have the burst damage, the Elemental for the Teleport tactic.
- I'm not entirely sure if either of the bosses can be crowd controlled, try if you can use the Rain / Bitter Cold combo or one of the early game knockdowns (Boulder Bash, Crushing Fist) on the Baron or the Ghoul.
