Links for others:
"Traditional" -- http://worldoflogs.com/reports/aq0icgheyjnpfmhv/
"His Style" -- http://worldoflogs.com/reports/6yli9f3bc5hxjyc2/
Mind Spike at #1 with 57% damage? That's the problem right there. His class isn't the thing that is broken, it is how he is playing it. I would say if he doesn't take the advice that has been given in this thread (by either sending him here to read it or relaying it to him), then there is no way he'll be willing to change or get better.