Added 3 hours and 23 minutes later
Alastor could be made as a hero for the Haven faction, but put him on a Nightmare creature (enlarged to fit a hero). Perhaps he should be given armor like that of the Warlords (but completely black and without the hole in the chest), and in his hands, he should have a sword like that of the Dragon Slayers (but set it on fire or make it glow like the Cave Lords' weapons). His head should be made like an improved Ghost (but try to make it opaque, with red eyes, a very wrinkled face, and smaller horns like those of the Archdevils, adjusted to fit a hero). Change the color of his spells (so that it looks like all these blue flashes are not blue, but ordinary fire). And that's how, through hard work, you can create a unique skin for Alastor.

