I haven't had a ton of trouble against blade, so slightly surprised to hear that it's meant to be a bad matchup. NoSB shuts down everything but batterskull, for what that's worth.

I was toying around with the idea of a BR stompy/pox type list as well... but I get the feeling monored 8moon is probably just better? Black doesn't add a ton aside from sinkhole, smallpox, and lilliana. Red has plenty of LD options without Sinkhole, and smallpox's LD will be largely redundant if you land a moon. The creature hate side of things gets stronger with black I guess, so you don't have to rely so much on bridge.

It's an interesting idea, might try to throw something together. Sol lands and 2 colors seems iffy though :(