a few cents from me

- AB can act as your quick heal for any target who are not getting continues damage, DPS at 70% hp? just heal and forget with AB

- no need to save Synastry, if you really need the 20% healing boost, use it.

- use Time dilation to maximize your buff

- if you are unsure to use bole as single or aoe effect, look at your party, are both dps doing great? is your tank warrior? then aoe it is. dps is meh but your tank is awesome warrior? single bole to him that is, and so on.

- learn swiftcast, this skill will save you a lot. and protect spell too.

what i like from AST is that they probably the only healer that can give your party (the player) a morale boost of sort, whenever i give a bole to DPS, they somehow start doing their full rotation lol

just for fun, AH (diurnal) + Bole (aoe) + card (spread) + TD (your choice) + CO + CU (not necessary) at the start of boss fight will usually get your party hype for "lets do this shit" moment