is this for random arenas? My first thought, an I know it has been said a thousand times before, is where is your Res? Drop something and get it in there.
Here is my input (assuming RA)
If you are worried about being squishy you could use some of the earth magic to fix that. Armor of Earth and Magnetic Aura are both good.
Obsidion Flame - good spell
Stone Daggers - awful spell (only good for being mildly annoying and to keep up kinetic armor, and only then if you can keep up with the energy cost)
Energy Burn - decent, but better if going full e-denial
Energy Surge - good, but better if going full e-denial
Power Leak - great, in most situations it can really hurt
Power Spike - decent, but you may be better off with CoF
Shatter/Drain Enchantment - I always love shattering/draining people in RA
Ward Against Melee - Use Armor of Earth instead
Like most people said you are kind of aimless in your skills but those are my thoughts on the indiviual skills you listed.
I like Illusion magic quite a bit and like the combo of Illusion and Domination better than going Dom earth, but that is just me. It is had to beat Ineptitude + Clumsiness when a warrior comes at you.
If you are trying to be a fast cast ele, I think you need to focus more on damage causing ele skills and how to fund them. If you want to be shutdown, I would get rid of obs flame and daggers (I would get rid of daggers no matter what actually). If you want to fo e-denial, you need to do that, but bring something to negate the warrior hate you are likely to face.
I am not a big fan of blackout in most situations, but it can be devastating in the right circumstances.
...anyway there are some rambling thoughts for you to skip over
