Both, will probably end up playing stormbringer more than dusk though
Bad sins yes
All sins, even def campers, SB got a 12 sec imune CC skill, reaper form for 32 secs, clones for hiero and spamable 50% hp heal(with combo of thunder and ice balls). Its sounds pretty easy for me.
From the video I saw the clone hits much lower than the class itself I think the new classes are overrated but thats just me i guess