I agree with two solutions, First, increase the cooldown on static barrier. I'm sure it absorbs less damage then I observe but it appears to me like I launch all my big damage attacks and its still up after a few abilities.
Second, I believe all classes have some sort of defensive shield, Why not match those abilities to the static barrier?
I'm a new MMO player so my opinion might not have all the facts. Don't punish me with responses to hard now.