For maximum output, YES! With the goal being to get as many casts off inside AA as possible,
you can exploit Cascade/Halo/Divine Star's transit time (and use your AA more efficiently) by:
- Casting the T90 Spell.
- Immediately casting AA (or your int pot or other player-controlled heal buff). Remember, no GCD for it.
If you cast AA before, you get
(18 - cast_time_of_T90) seconds of AA. But if you cast after like above, you get the full
(18) seconds to use on other things with no loss in performance.
You need to be quick though. Divine Star and Halo could heal instantly if players are on top of you. This is a much safer strategy for Cascade as the first bounce always takes a second or two.
Great insight. I will definitely be updating my rotation.