This time around I decided to spec my wizard in abjuration, but I am regretting it.
For one thing, mage armor appears to be the only wizard abjuration spell, so it doesn't come into play very often.
I can learn some cleric abjuration spells (which is a little weird) but they don't seem to trigger the effect.
Also it's shield just seems fairly week given how much damage everything does and how many hit points everything has.
Suggest buffing it's shield value a little? I still don't think it would make the mage anywhere near a tank, although it would be cool if there was a way you could spec abjuration that was.
I particularly think this needs a buff given how useful the evoker buff is, shockwave that only hits enemies is pretty amazing in this game, especially with all the high ledges.