To preface these questions my players are going to be heading into a volcano in the next leg of adventure. I want the place to be crawling with Salamanders, Fire Elementals, Fire Giant(s), etc.
1. How do I translate having an environment that is 500 degrees or hotter into game mechanics? The rules only outline 1d6 damage at 140+ but this will be far hotter than that.
2. What spells/items are available to allow them to actually complete the adventure? Endure elements just ain't going to cut it.
Appreciate the insight.
Well, at 500 degrees Fahrenheit, things start spontaneously bursting into flame. So that is an additional danger. You could also boost environmental damage.
I think to survive in these environments, you would need an appropriate amount of fire resistance... i.e. 6 points of resistance per d6 of damage :)