While using Celestial Shadow and Cosmic Wisp for the druid, I discovered that by spamming 1 to charge the profession-specific energy to full (more people around the better since it charges faster) then activating and deactivating the F5 skill in rapid succession, then rinse-repeat I was able to give everyone near me near-perpetual super speed, stealth, and healing.
I will not take advantage of this build (just saying).