necrotic strike? lol unholy is ALLL about scourge strike and festering strikes... the dps is much higher once you get diseases up and start with the ss's.

That being said, you wont do as much dmg as frost simply because you cant aoe as well. Throwing diseases on one target and spreading them before they get dispelled, and then keeping them up in large scale pvp is just a tax on your patience. If you're single target burning people down fast tho, then you're set
lol