Astrologian - do you really want to rely on RNG in your group healer?

[Teraluna]

Apparently, OP knows nothing about AST because RNG plays absolutely NO part in their healing ability.

Healer is a generic description - as you know full well.
If I was going to use the full description of the Astro - Healer/Resurrecter/Skill Buffer/Shield Applier/Target Reducer etc - then the text limit would be reached pretty quick.
It takes up a healing spot in groups. It's described as a healer by the game's own developers - who expect the player base to recognize that it's a generic term.
Most of them do.
And it's a healer (note - generic term) that has introduced an rng gimmick for 6 of the class abilities - for no apparent reason other than to bring 'roll the dice luck' into a class.
Class performance should be down to player skills, not rng for around 20% of the class skills list.