How to build a late game Sciel (And maybe Lune)?

[Stübi Senpai]

So I'm wondering if anybody has some hints on how to build Sciel, because she consistently underperforms with my party being at an average level of around 55. She's the only one that actually needs a bit of setup to get her stuff going, and doing okay damage every 3 turn or so just doesnt hold up with the rest, Verso and Maelle in particular.

Lune is slightly better, but I feel like she entirely comes down to playing a fully critted out elemental trick into genesis with the 4 stains it generates, which isn't bad, but also doesn't tend to hold up.

[ZexxCrine]

sciel is a better as a support for the most part. however if you want damage on her you kinda have to abuse her gradient 1. so you can apply max stacks and then immediately eat the stacks. she has a weapon that extends her twilight duration by 1 and that lets you do gradient 1 and then the 9 cost skill that consumes fortune and extends twilight by 1 turn endlessly. i'm sure you could build a higher damage build off that with luminas

you can also make her really fast and spam gradient 1 and the delay hit. if you slow a boss and use delay hit constantly you can actually make some bosses almost unable to act.

if you want lune to do damage your one stop shop is the fire move that progressively gets stronger as long as you don't get hit. put cheater on her to make her do it twice. as long as you don't get hit she will scale out of control

or you can use the weapon that gives you a free turn when using stains on healing skills and use typhoon and hell every turn. if you have the pictos for it typhoon can pass out rush, powerful, shell, and 6ap to the whole team everytime you use it and it activates meaning everyone is at full ap all of the time