Each character gets a stun move. Use this to interupt healing.
As a psionic, don't be afraid to get a little friendly with direct damage. Your weapon attack is quite nasty, and a psionic blast coming at you for 150+ makes games a lot easier. With forget, its usually a good idea to lock down their spell with the fastest cooldown time, usually interrupts.
I feel that the current weapons and types are good, more variety of the same weapon types would be nice, but the interface is sort of silly. Perhaps someway to customize the layout yourself would be nice?
Rudy, I may not have much experience with designing games, but I do have plenty in creating balanced gameplay. Perhaps we could work on the sequel together, and I can add a great deal of depth while preserving your system and simplicity.