He was a tough damn arial. I was playing Kucerael at the time. She was a gnome invoker, Elder Magus of Nexus.
One time I got him to come for a fair fight. We met in Hillcrest and had it out, 1 on 1, no cabal powers. Just your real stuff. Two leaders duking it out. Of course, he was a berserker, so he still threw out deathblows which skewed the fight, and he sent me packing.
For anybody out there wanting to kill invokers, all you have to do is lag them. I've played enough invokers to know that. Lagged invoker = dead.