I think the mind control power is a bit too strong. I've had more than one game that wound up being not much fun to play because mind control allowed a first turn wizard kill move! I know luck is a factor, too. But I think Mind Control needs a little nerfing. Maybe make it cost 2 cards like eviserate.
It is a bit strong, maybe it could move the target less spaces like 2/3?
I think it's a reasonable compromise to reduce the mindcontrol to three spaces.
I hear from some "old timers" that there was no die roll for it, you would just pay a card and do it. The Psi is a little scary attacking for 5 with those abilities!