corrected the syntax of wowphreak a bit, the following should work:

Code:
/cast [mod:ctrl,mod:shift,nomod:alt,target=ToonA][mod:ctrl,mod:alt,nomod:shift,target=ToonB][mod:alt,mod:shift,nomod:ctrl,target=ToonC][mod:ctrl,mod:alt,mod:shift,target=ToonD] Healing Wave