Or even better, pass along this bit of advice to a friend and a friend of a friend...
"Don't pick up CoX."
Holds that don't hold? Phased MIs that can attack? I'm with the other guy on this - are y'all on crack?
Why not just make power effects randomly generated? Holds? Sometimes they'll hold - maybe they'll blast. Heck, sometimes even taunt! Blasts? Hmmm, sometimes they'll do damage, sometimes heal! That's the best idea because then no one can make an uber build. It will completely solve the balance issue! And everything will be a FUN challenge ALL the time.