[HC] Best solo build for hardcore?

FP shadow is strong as long as you build defensively. I mostly use pulse on my main and almost always solo (cats, luna, maps and a couple mf spots) with minimal issues anywhere. The build has great cc and survivability but its very gear dependant.

If youre not willing to put some serious time into trading/grinding for currency, you might be better off with a spectre summoner. Build around a specific strong monster and youll need minimal gear/currency to solo the entire main campaign and run maps in relative safety.