User blog comment:Nyxoda/lizzie pucket/@comment-3114880-20141206185648

blatant Mary Sue here. Work on moving past this stage. We're already having trouble dealing with Gao, and he's not even that bad compared to Lizzie here. You should probably throw this character away and start all over from scratch. about 90% is going to need to be trimmed anyway.

Filling a deck with fanmade cards is OK as long as you don't make them game-breakers. You probably should cut back on the raw number of cards there. Take some time to get some hands-on experience playing the game before you rebuild her deck. Maybe she won't need the special-sized core deck case once you get better at deck building, because there's no way she'd need a core deck case big enough for 103 cards. (Remember, as you add more cards to a deck, you reduce your odds of getting the one you need in that exact situation.)

Divine heritage is best left to creating a story completely from scratch (i.e. NOT A FANFIC), and even then, you have to be VERY careful with character balance instead of using it as an excuse to make the most perfect character imaginable.

The big long list of her battle skills should be thrown away, for the most part. Most of it has no place in the FCB universe to begin with.

Music ability can be toned down without being thrown away completely. Hey, why can't she be an aspiring singer who dreams of becoming a pop idol? She can still be talented, but she just doesn't need to have this divine singing voice.

She's a terrible liar... this is a weakness I actually kinda like: put her in situations where she needs to lie in order to protect others.

Weapons: It's one thing if her core deck case transforms into a weapon, but she doesn't really need other accessories that turn into weapons for her. You have her core deck case turning into a bracelet. And even having them is pointless if she acquires Future Force.

Crossover elements: no... unless you're going for a crossover story in the first place, in which case you should probably involve more Pokemon characters than just Ash. As for Ash himself: Ash has, by now, developed a reputation for being completely and utterly oblivious to the advances of so many female characters over the course of the Pokemon anime. Part of what defines the whole Mary Sue concept is the ability to derail the characters around them by their presence alone. An important part of fanfic writing is character integrity.

As for being Tetsuya's half-sister... that's not only unnecessary but contradictory to her divine heritage that you listed. I advise you nix that because as Kazane has shown, being related to an existing character isn't needed as a fast track to gain their trust. The main group is nice enough, they'll probably accept her even if she isn't related to anyone already in the group.