plated leather set OE , kris focus, +5dex +4 str -9con and fullbuffed (VR is a must) and you kill in catacombs so easily..keep vs on any time you kill for better criticals.you sustain your low hp with hp gained from huge criticals+vr.
there is another way of course but it requires more people: the blow-user.you need a recharger with you and some other party members/OOP : bd,swm. if the recharger (best choice : ss for powind also) can hold you on full mp always you cut thru mobs easily.however for this build i'd recommend a more pvp-oriented build with doom light at least and +CD dagger with vs on of course.a MM dagger can help a lot of course.
the latter build required more people so i'd stick with the first one instead : TH+WC = lots of xp
p.s. : any type of summoner is welcome in the party especially warlock with queen buff and cubics because you have a very fast attack speed.

+1 if u can have VR so the -9con(imo huge for the human) is not such a big problem but remember...if there is a pvp situation-ull get stuned like a fly anyway second way is great too and worx fine for me at least(for some info im the SE and another dagger is the blow-er)