Now it's time to paint some lava!!
I went to youtube, typed in "lava bases" and found this!
And while I don't have an airbrush, this was very helpful.
I started with a couple of coats of reaper white primer.
Skipped taking some pictures, and here we've got some Marigold Yellow, Fire Red, Dragon Red, and Pure Black on the rock.
After a bunch of blending and glazing...
We've got a tabletop quality pit fiend!