Don't make a sc for pvm. I am lv 175 and did some extensive research on how to pvm with this class. SC have a very hard cap on what we can do beyond woe, even with unlimited zenny. The class is simply not mention for killing monsters effectively since 80% of your tool kit is pvp related. You cannot masq Mvp, bit you can divest them.
If you still wanna try, my best suggestion is ASS build.
I'll do it, i already have a build to get max aspd with a shield, i don't taking long to kill the mvp, just want to do it safe, just please tell me what skill should i get to clean mobs on endless tower, if that's okay