I like the idea of the totems, however I think you might want to scale that back to give extra xp/armor/hp/mp all at once, but do a % modifier like 5/7/10/extra perk or 15% sort of thing... otherwise it would be a little overpowered if a 20% flag and the 10% favor item is attained, I think you could see a level 10-12 wizard when everybody else is around 5-6.

It could still be useful if specialized in, as if it was a longer game I still think they would get to level 20, when others are around 16-17, which would be a fine reward for investing in it.

The immunity might be too much like the Oaks ability, perhaps do something along the lines of disabling an enemy hero like a polymorph/sleep where any damage removes the effect? Great run away/DG control tool!

Rather than an AOE ability, how about a drain mana ability? Unless I'm mistaken we don't have any DG's that employ that sort of attack just yet. Perhaps the mana drained could be distributed to friendly DG's in a certain range of the caster, or cause something like +25%/+35%/+45%/+55% mana regen for "15~" seconds to friendly teammates within a certain radius... has a lot of potential!

Magic armor seems good.

Melee combat could work as well - kind of a melee support wizard idea, I'm guessing your just throwing whatever numbers out, but 20 times level sounds like you would have him hitting for 750+ with a few attack items, I'm guessing that could be more like 2x, 4x, 6x, 10x?

Money purse might be a little weak of an ability, as you would sacrifice alot of utility to get it right at the start, perhaps if it was closer to 4/6/10? You might have players who go pure support role with this DG, and invest alot in the citadel, with the extra income they could buy the additional gold/xp upgrades for the team. I think several more 'pure' support DG's would be a great addition for team games.

I like this.  I love the idea of a nuker/support mage.  I am a HUGE fan of casters in RPG-type games, so this is very appealing to me. 

1. Spell: Immunity. Makes friendly demigods immune from attacks for 2,3,4 seconds (depending on level)."

So, this is basically like Oak's invulnerability shield, correct?  I imagine that this also means, if this skill is included, that this Demigod would HAVE to go to the Dark Forces since it'd be kind of overpowerd if the Light Forces had two Demigods who could both cast invulnerability on allies. 

I like the totem idea, but instead of totems what about orbs of some kind? This is a, concept, wizard and all. Tread the bonus exp carefully though. You already have exp upgrades at the citadel. Instead of Charm beast causing enemy troops to switch team sides. What if instead the ability would boost nearby portal minions. Like some kind of aura. Oh and what happened to ability 4?

Hell I'm just gonna throw this out there. Make it a woman. We already have 6 men. Then again... What is Unclean Beast?

I dont think that a mage as you described will work in the story line. He will be to human and not a God class.

We need a abrobatic speedser like a monkey King.

I like the effects of the last 3 buffs for ability 1, however I don't like the 20% more exp. It's a huge gain, especially if you factor in the flag cap and a favor item, and combined with ability 8 and citadel upgrades, it all but guarantees that the Demigod would be able to get good equipment and his team be high level much earlier.

Exp is a very important "stat" in that a single point into an ability can make a big difference, so I don't think an xp bonus should be given out as a team-wide ability.

Ability 7 doesn't reall fit with a wizard archetype. When do you see wizards in melee bashing things with their staves? (Gandalf in Return of the King doesn't count, that was stupid and never happened in the real story - book). If you're going to give him melee stuff, it's not really a classic wizard but more of a battlemage, which would focus on powerful short ranged attacks.

Magic Armor then becomes a little boring. Decrease the armor bonus, but change the ability to be a "blade shield" type of thing. Spinning blades around him do increase his armor a bit, but they also damage anything in close range. Higher ranks add more blades. Alternatively make these blades his unique minions, and increasing ranks increases their dodge rating and damage. If that's the case, Magic Armor should be something that discourages things from beating up on him. Returns a % of the damage, up to an x damage returned, going up by ranks.

More later..

And I agree with other posters, invulnerability is meh. Replace it with something a little more fun - blink, invisibility, etc.

I'd really like to see a tinkerer type demigod to contrast with all the fantastical magic that the other demigods are putting out. The character would be so enamored with technology and machinery it'd rise to godlike status, similar to how Batman is a super hero despite the fact he doesn't have any special powers. 

Hmm, there should totally be a steampunk Demigod! Clockwork things as his minions, with gears and rivets flying every which way when they're destroyed.

Sorry for repeated posts, but here's a fun idea for an abiilty - Cancel enemy buffs. For x seconds, no buffs can be applied to the target Demigod, and all existing buffs are suppressed (this includes "active" buffs like health regen, but not passive ones like +hp/armor/attack speed). Oaks won't get their spirit damage bonus. Rook won't get his Divine weapon damage bonus, Sedna will lose her heal aura.. stuff like that.

I'd like to see the magic missle have user selected targeting.  By that I mean have left click fire x number of missles at x number of targets in the area; have right click fire all x missles at same target.  That way it's useful for both creep and DGs.  I agree with invunerability belonging to Oak but I propose you replace it with teleport (similar to scroll & items) with a very long initial cool down that is reduced with level.  You could have the teleport level also reduce the activation time to further differenciate it from the items.

magic armor and spell immunity both seem to copy other demigods little to much

maybe magic armor could reflect damage back but only be half as strong, think that would be a pretty cool ability

spell immunity could maybe also drain mana or deal mana damage but also be less effective

That really isn't "RTS building", and is pretty similar to the Rook setting up towers anyways...