AST questions

[Ceasaria]

1. Aligning Draw with Combust
2. How often should I actually be using Benefic?
3. How bad is the MP situation for AST?
4. Noct Sect
5. Role Skills

1) Draw the maximum of cards as you said.
2) Benefic I & Cure I = never (excepted if very low mana). It's better to do one Benefic II + one GCD dps than two Benefic I.
3) Pretty if like me, you have 15k mana haha On God Kefka it's very hot (16k it's okay). You need to talk with Bard, Mch or Caster for decide where you want their refresh mana in the fight (to not be at the same time as Lucid Dream if possible).
4) It's normal with your compo. To heal someone or group, Abilities are the priority first, then the Regen, and finally the non-Regen spells.
I see you use Time Dilatation on tank with Eye for an Eye. Your choices are this or Collective Unconscious or cards. Try to combine two of them at least and use Time Dilatation on tank (or dps if only cards).
5) Eye for an Eye is too random and not enough powerful to rely on it (maybe keep it if you don't have cleared a fight, but once you are used to it, replace it).
Lucid Dream, Switcast = always.

PS : O6S boss is only magic, so Eye for an Eye don't work.
PS2: I don't how you could improve it, but your cast time by minute (CPM) is quite low. You need to do always something during the fight, even when there is a mecanic, or when you are moving.
You need to be comfortable with healing, with dps and with cards all together when knowing the fight perfectly (or nearly) to put high CPM. But it come with xp too. If you improve now, your cpm will be higher at the beggining of the next raid.