Fire-based enemies tend to show up on fire-based levels. The thing about fire levels is that, due to this trait, fire-based weapons are ineffective. This makes thematic sense.
What doesn’t make sense is when a (herd? flock?) phlegm of Ice Cubes showed up. Sadly I don’t have pictures of the phlegm, since they converged and tried to kill me if I stayed still long enough to screenshot. But I do have an intrepid individual here.
Had I known there would be Ice Cubes, I would have brought along Fireburst Brandish so as to nullify their freeze attack, which is super-annoying at best and deadly at worst. But Fireburst Brandishes are useless on Fire levels…
… except, apparently, in this one case. Unless those Ice Cubes, by merit of being on a Fire Level, are also resistant to fire. Which I actually would be okay with.
I have to say that some of the random level generation is very random.