I keep switching my primary to spectral blades, the stacking fire buff it gives is really strong and the ability feels awesome to use. Its fine in torment 1 or 2 with force wave.

My one problem is on higher torments (4 ) elliet groups completely wreck me in melee range. My toughness is really good, sitting over 10 mil buffed (my profile: http://eu.battle.net/d3/en/profile/Pearroc-1951/hero/38987894 - ignore the spells and passives, they constantly change but the gear is correct) but I still find any elliets that hit me in melee range destroy me. Then theres electrified, I cannot deal with electrified at all in close range in higher torments.

I always end up switching back to magic missile which I find pretty boring. But its much safer standing back and meteoring and missiling then getting close and dying every other pack.

How are wizards on this sub using spectral blade managing to use the ability to any success?