[Locked] The chat thread 1.1 (see first page)

yea but that one i kinda have memorized, from seeing so much kanji in manga magazines etc and of course in lycee, my reading of kanji ability is pretty good compared to the rest of the class, but grammer..... k let me stray a little open spoiler if u can help or are just curious

k in lycee the character abilities sometimes have "このキャラが" or このキャラの"
followed usually by "攻撃しているバトル中に使用する。"
what does the different particle imply, or whats its context, i thought it means "use when this character battles."
or is this one of those cases where more information is needed to formulate what the sentence means! argh nano desu