Left click to shoot healing orbs on your allies (be careful not to heal ennemies)
Right click or hold to move to your mouse position.
Move to one of your allies to kick them to trigger their special attack
Q/W/E : Trigger your powers once you unlocked them

PRO Tip:
Move to one of your allies to kick them to trigger their special attack
casting the E spell on an ally and then kicking them to trigger their special attack is a great combo