AA's : summoner : strength 4/4/4/8, stamina 8, wisdom 4/4/4/5, intelligence 6/4/4/8/1
more crits, more hp, beefy mage pet, you do not want to increase minion's warding and cancel it when you see it on yourself...you want the mage pet to live longer, beef up your own stats and take the hits like a champ.
necromancer: lose the worthless ooze crawler and pump points to get blood pact, many will say " oh the ooze crawler is awesome for our raid guild"...it's crap, you want to be a support class roll a bard, want to be a debuff class roll a swash or brigand, you're a necro DPS like you were designed to.
Gear wise: Impaler staff + Praetor's guard isn't too horrible if that's all you can muster, I can't see your full gear choices so can't help too much (unblock ur profile 
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Spells: use dumbfires and swarms as much as possible, the ZW dps still adds up quite a bit, the scout pet has been shown to do well in the lower tiers of RoK raiding, but once you're in the upper tiers...warlock pet all the way, personally I use the warlock full time