[*]Scourge Warlock [*][*]Creeping Death: Now causes 60% of your necrotic damage over 4 seconds (down from 100%). It says that it causes 60% damage over 4 seconds, but is doing 60% over 8 seconds. This needs to be adressed.
Use Fury/Soulbinder. Get the artifact off hand and choose borrowed time bonus. When pvping don't use soulscorch because you will need your soulsparks to get high deflect. This way you will have good dps and good defense.
You just don't know how to play it if you're saying is weak. I'm a 18k pvp SW and can take all other 20k+ unless they perma cc then that's a problem. If you want a pvp SW then roll Fury, if you wany dps and defense then roll a Fury/soulbinder.