well the left click currently slows you downwith a ki cost, maby placeing your move as a right click (secondry fire) move, more effective but higher cost, i like it, can help against melee + eyelazer type combos.
edit* while i think this is a good idea hikbi does have a point, no time to be implemented (yay hope release is soon), maby it will become part of the 1.2 melee patch pc joe was talking bout hint hint