Regarding AST

[Braven]

Honestly, the only change I would make to AST, is to MAKE GRAVITY A LVL 50 SKILL. Can't use it in the majority of trials, because it's locked behind that accursed "wevel fifty twooo" mark. Not until they release more Stormblood trials, anyways.
Edit: Or, ooor let us get rid of a held card, auto holding a spire is...yeah.

I agree; it is annoying having no AOE at all for level 50 capped content. Getting gravity slightly earlier won’t end game balance but will make AST less boring at low levels. Synastry can be moved up to level 52 and take the place of gravity. AST already has the best low-level healing with essential dignity and high potency heals; synastry is just overkill and isn’t needed at level 50.

Getting gravity earlier will also help make Ewer more powerful since you will need it for gravity spam.