I'm only at level 54 AST so far (been leveling my AST and my SCH simultaniously), and it is definitely a lot more difficult to heal the dungeons I've been doing on AST than SCH.

Overall, I don't have a problem with the card mechanics, but I do think there could be a buff to most, if not all of them. Despite the OP singing praises about the Arrow Card...I've hardly noticed any effect when I use it on myself. Same could probably be said with most of the cards....

Tho I would say they could probably just leave the cards as is, and balance the potency/mana cost/cast time of the healing spells. And/or make it so Nocturnal Sect stacked with SCH abilities and Diurnal with WHM, or even just AST's playing in the same sect.

And boost their DPS. AST dps and healing potency are both so low that I don't even bother doing the cleric stance dance.