Good timings on Earthly Star are satisfying, drop them well ahead of the big damage watch the numbers shoot back up. Time everything juust right and you don't need to hit the activation button.

However generally speaking AST is kind of no frills "Back to Basics" kind of healing. If what you find satisfying is having enough power to correct for large mistakes on the part of others, and 3 answers to every problem AST will never feel good. It just can't do that.

You put your shields in the right place at the right time, mind your mana and put out your buffs. It's all about solid fundamentals out there (and not clown fundamentals!)