there's 2 possible that i can immediately think of, one would be to add say a 5% attack speed buff to fist of wind, we wouldnt want to be in it permanetly because TP would drain out in a heartbeat, and rotation would become messy, but it would be good for rebuilding stacks quickly?
the other would be to make fist of wind remove positional requirements on skills, so for something similar to ravana with the all seeing sides, we go into fist of wind temporarily to avoid the damage penalty of missing positional, but do less than optimal damage if we stayed in it constantly.


either way, fist of earth/fire feel fine to me, the only thing that needs to be changed imo is fist of wind