Elementalist Damage Formula

So I know this mod is widely considered garbage, but I was curious if anybody ever bothered to work out its damage formula. I enjoy trying to build around off-meta items so thought I might see what I can do with it, but knowing what stuff it scales with would be an enormously helpful starting point. I’ve read that Do Harm does nothing for it and elemental damage boosts are pretty much the only thing I’m sure will boost it.

Any relevant info would be greatly appreciated.

I’ve found a few of these with great rolls during this loot event, sadly the class mod is not really any use on mayhem levels in my basic testing.
I’d also be interested if anyone knows any better.