
So for sciel you want to build up sun and moon charges and also foretell( each of her moves has a little sun or moon in the corner to indicate which one it will give you). Foretell is like a little dmg multiplier and each move will also tell you how much foretell it applies but you can only stack 10 foretell. Once you have at least one sun and one moon charge you’ll enter twilight which makes you do 200x dmg and also applies 2x foretell (and you can now stack up to 20 foretell).
I hope I don’t sound condescending I just want to explain it clearly. For Lune she is your elemental attacker. Using the elemental moves gives you a stain in that element. Each of her moves will tell you which stains it can consume to do an extra effect. Like for example her healing move will cost 0 ap if you have two light stains for it to consume. Her weapons also have different effects so it’s important to look at what those effects are and build around it.