Cheat Sheet for New AST

[KDSilver]

Indeed, the goal of ast cards if to have a aoe balance because it has the more impact on the party.
BUT

If you waste more than 2 draw, then it's better to actually try to use efficently the cards you get rather than burning or throwing everything.
Arrow is the second choice by default.

Then a Bole can help (on the MT, a little useless in AOE especialy if there's not heavy aoe damages).
Ewer just in case when practising a trial.
Spear could be useful for yourself if again, practising and learning mecanics, so you're CD come back sooner (mana regen, largess...)

[Lyrica_Ashtine]

Indeed, the goal of ast cards if to have a aoe balance because it has the more impact on the party.

I'd argue with that the goal is to use with whatever you have. Each duty/encounter has a limited amount of cards to use and any cards not used for anything is a waste. While there are techniques to try and force out the result you want - More often than not an expanded/extended Balance -, these are not fool proof.