Hey guys,

I've been leveling my AST recently and I've been wondering what a good way of proceeding with cards would be.
There are many guides out there that will tell you what card to use on whom etc.. etc.. But there are many combinations and I was wondering what everyone's preferences were.
It's a bit of a nebulous subject for me and I'm guessing there are too many flavors to extrapolate a specific rule but basically here's how I've been proceeding:

1) redraw until I can combine full party royal road with speed or damage buff
2) if I fail the above because of RNG I feel like adding a draw cooldown to obtain 1) is still better than applying another buff to the group or a damage/speed buff to a single player. So I just wait for another draw
3) I'll only use TP/mana cards on users when they really need them. (usually longer fights). And often I'll prefer royal roading them if I feel like group wide buff outweighs the benefit for that one user (which I feel is almost always, short of a healer being OOM or there not being enough time in a fight to take advantage of another draw)
4) if I get a protection card I'll use it on a tank only if I can't redraw.

I feel like I'm painting myself in a corner but at the same time I have a hard time seeing how applying a card (even royal road buffed/longer) to a single player outweighs a group wide one.

I understand that speed on the group could mean increased use of mana/TP. But that's kind of a non-issue as it's still preferable to no buff at all.
Maybe it screws up some rotations? I'm not sure.

You're help in educating me would be greatly appreciated.

Cheers.