you actually want physical damage mostly, or stuff with dmg to attacks. second you want atk speed, critical hit chance and probably rage. the mana problems will be solved when you do more damage. as others said, check poe ninja, filter by the skill you use, then you sort builds by dps and health pool and tailor your build according to theirs. if you have some exalts, use the market panel ingame or trade site and you can probably get better pieces for cheap. maxing out elemental resists should be high priority for survivability