Don't know if anyone tried it before , but LK25HC is easily soloable with DW Frost (probally with 2h and UH too). If someone already mentioned please delete this (I've done it in ilvl 556, but it died within 10 minutes, so i guess you dont need that superb gear for it). I've just simply killed every add in transition phases (wasnt dpsing LK in that), including the p1 adds, it was pretty straightforward, killed it on first attempt. It's faster then blood atleast for me, used Death Siphon with Blood Tap.