Help With My Necro Plz

My Pvp Bone Necro is Lvl 71 and His Bone Spear does about 1100 Dmg, and his Bone spirit 1400..I heard there supposed to do way more like 3 & 4K dmg
what Is wrong??

And Also what is the best possible Equip for me too use? plz include runes to socket
I just need to try and fix my necro b4 its too late

Thanks for any Help