Viability of offbeat damage combinations?

don’t think many conduits, or items in general do multi conversions into unrelated dmg types, by design i presume
what you can use a given conduit to is to convert a given thing into something weird, like acid trozan or devastation or something
bleed will never be a thing, ever, bleed can’t be converted into or from, thus any and all inclusion into something will have to be direct or through WD - hence why you see bleed booster mods but not transmuters

so what you could do would be to take conduit, give it’s probably the most likely source of a weird conversion/unrelated dmg type source, and then combine it with your other chosen dmg type, either via global conversion or native transmuters elsewhere
again, if you go bleed you’re at best gonna get halfsies, since certain dmg types are magical+non-dotted means they likely wont ever exist on the same item, so you have to split the difference yourself through creativity

again, everything is likely possible, but the more jank or wonky it is, the more creative you have to get