Just some notes, I don't have any suggestions at the moment as what to put IN, but some thoughts on a few of the spells you've chosen.
Deflection Bracers & Leather Gloves - You can't equip both of these. Is there one you would see yourself always wanting? Is there a situation where you would say "not enough mana to cast Deflection Bracers, I'll settle for Leather Gloves" instead of just waiting a turn to conserve mana?
Bear Strength & Cheetah Speed - These can only target living creatures, so they can only target your mage, your hydra, or your gorgon archer. A Wizard is not generally a melee force to be reckoned with so you're probably better off doing something else with your mana instead of Bear Strength on yourself. The Hydra's main draw is triple strike, and Melee+2 only works on the first strike, and his triple strike attack is a full attack, so he can't use Cheetah Speed to get it in. I don't think I need to explain why these aren't great for the Gorgon Archer. Basically, I think you would be better off in most situations casting spells to make sure your creatures are POSITIONED correctly for their big attacks than using mana to buff them.
"Elemental Ring" - what is this? Do you mean Lightning Ring? If so, it only works on lightning, and you're an Earth Wizard, so chuck it. Better would be an Arcane Ring to conserve mana on your mana crystals, nullifies, dispels, etc.
Charge - This is good, since it targets "corporeal creatures", not just Living creatures. Best used on your Iron Golem so he can swing for 7 when the enemy mage thinks he's safe. I might even put a 2nd one in, just because if it happens once they might be wary of it, but also might think you wouldn't attempt the same trick twice. That's when you hit them with the same trick a 2nd time.
Chain Lightning - Any particular reason this is in here? I mean it's a decent spell for swarms but you also have a Circle of Lightning, which is great against swarms and will probably see more use. Plus the Earth Elemental has a great zone attack, and you have 2 Hail of Stones. I'm not saying you should take it out, I'm just not sure if it's necessary at this point and it's pretty expensive when you're not an Air Wizard.
Earthquake - Maybe it's just me but I don't care for this spell. Conjurations are usually not a huge enough issue that you want to spend time going after them. However I guess if you play against a lot of Priestesses maybe this is worthwhile. It just seems like a weak attack especially when the best conjurations are usually zone exclusive.
OK I lied I do have a couple suggestions as for what to put in:
Quicksand - Sure it's only like a 25% chance to kill the creature, but it's pretty cheap for what could easily turn into a multi-turn restrain. You want to use this tactically, when an enemy creature is really going to want to take an action rather than try to escape. It also combos well with Sleep for an all-but guaranteed kill on a creature that costs about as much mana as the creature cost to put out. Wouldn't recommend this often, but in a pinch it could be devastating.
Sniper Shot - If you have a Wand with Hurl Boulder on it, I'm going to want to prevent you from hitting me with those boulders. So I'm probably going to throw up a Block or Reverse Attack or something. Or maybe I have a Defense. Well, Sniper Shot gets right through those by making your next ranged attack Unavoidable. Against a Forcemaster I might even put it on a Wand.
Perfect Strike - See Sniper Shot. Great against Block/Reverse Attack/Defenses.
