Tulekahju REALLY has a right skillset?
Tulekahju has only fire attacks, and the "Open Flesh" description is kind of strange.. In Statistics, this attack is single enemy, but in description it says "Deals moderate damage to ALL enemies. Gives fire weakness to all enemies". In game also, he has special skills. Cleaning torch, Cursed Flames and Open Flesh.
Open Flesh is even more confusing in battle, because this is not a AoE, and the sticky lava either.
So seriously: This monster is good? It's worth 249 gems? Can be compared with Shalinar Darmith? Will be patched someday? It's hard to answer knowing that.
Here is a photo of him using open flesh.