u must have hit. do u realize how many dots a SP has? DP, swp, VT, Mindflay. thats 4
imagine if they all miss?
anyway get to 17% hit cap then go all haste.
i start out with
Vt, MB, SW
, sw:P, DP, spam mindflay till 5 stacks, use AA and shadowfiend, refresh VT if needed, make sure to blow mindblast every CD and SW death helps for mana too, then just keep dots up.
sw death doesnt screw ur dmg that much. and make sure to MB every cd cause chances are ur gonna have an orb every 6 seconds.
and yes crit is an alrite stat, but mastery is so much better.