during team fights you need to heal as many allies as you can but reattach to someone else in case they die anyway so you dont get the W cooldown, make sure you always have atlease one charge tho so you can use Q or R to make the empowered healing with unholy grail stronger
Not true that you have to re attach to aply aeirie. Aerie just has a cd that you didn't wait for. wait like 2 sec and aerie can be used on another target