What spells are you using? Im just finishing up Nightmare now. Normal > Nightmare early chapter was a nightmare for me but i currently have 11k health so im quite tanky now.
Let me say this up front: I'm a stick-and-move kiting Mage.
My left and right click are the Piercing Orb and Celestial Orb**.
I'm also using Spark Flint* (+12% damage), Magic Weapon (+15% damage), Arcane/Lightning Hydras, and Diamond Skin.
*I will switch out Spark Flint for Teleport or Archon if/when necessary. **You won't have Celestial Orb for a long time, but the regular Arcane Orb + damage is just terrific.
That said, I prefer this build because it allows me to "fire & forget". I can drop my Hydras, then proceed to kite any and everyone. shoot primary/secondary, take a few steps away from the enemy and repeat. And both my secondary and primary attacks are well suited for that style. I don't use any spells that force me to remain stationary, as Wiz's HP drops faster than a paid hooker's skirt.
Once you get Celestial Orb, you're going to find yourself simply laughing at the damage done to groups.
"Killed 24 in a single blow" is something you'll see regularly. It's like bowling.
couldn't you find a weapon with a slot in it for a sick gem? also i think if you are going to craft high level gems, like the stars, its just cheaper to make them yourself than to buy them on the AH
It's pretty hard to find weapons with over 990 dps WITH a slot. They're just low in number. I got mine for 90k, which I know was a ridiculous deal. The ones with a slot are either (a) of lower dps (usually in the 800-900 dps range) @ 100k-200k, or are extremely expensive (500k). I'm not interesting in spending 500k-1m for any weapon that I've seen so far. The strongest 2h weapon I've seen so far was only 180dps stronger than the mace I'm currently using, and the actual damage range maybe only 200 damage stronger either way.
In other words, gains I've seen are somewhat negligible for the asking prices. Now, if I spot an 1100dps weapon for 200k, I'll buy it in a heartbeat. But 1 mill? Not sure the cost/benefit is in my corner on that one.