Originally Posted by ramazan

Why is that? Her atk power is the lowest of 3* her triple lance skill does 0.5x3=1.5X damage while rosalba does 1.8X But if it was about garden boss which takes 1 damage and marigolds triple attack actually does 3 damage then you maybe right though but im not sure for that one, just heard it on discord.

Well, each skill is best in a certain situation. Rosalba's high single target damage is good vs bosses because it can overcome more of the defense, Rosa Novalis and Cary Ophyllus (ignore what the in-game description says, it's completely wrong) are best when there are three targets, because they hit all enemies. Multi-hit skills like Triple or Double Lance are great because they can hit one target three times, or they can finish off a weak target and hit another target twice, etc. As long as there are enemies left to hit, you will always get the full value from the skill. Plus against bosses that always take 1 damage they really shine.

Still... As has been said before, all 2* and 3* units are pretty much just placeholders. Eventually there will be storyline events where you'll use them, so you should keep one of each anyway, but you shouldn't really concern yourself which ones you take to high levels. Unless you really like the character, but then you shouldn't care how good she is