I admit I know nothing about this character or the show she's from(and if I did I'd probably already know the answer), but.... what in gods name is she holding? O_o
ๅใค katsu, to win. Katsuru is not actually a word, ใใใงๅใคใ is apparently a joke on japanese boards. I can't seem to find the origin, though it looks like an FF joke made by someone named ใใญใณใ: ใใใใคใใใฎใ๏ผใใใฏใใ๏ผใใใใ๏ผ็พใใ๏ผใใใกใคใณ็พใใ๏ผใใใใใงๅใคใ๏ผใ - 'You're here already!' 'That was fast!' 'He's here! The tank is here!' 'The main tank is here!' 'Now we'll win for sure!'
It might have started as an involuntary mix between katsu and kateru. Like when people type things such as "I can do not believe it". Not exactly a typo, but two different phrasings getting mixed up.