You want \fig\ty_fig_ext_list.msbin. That has all the trophy text.
If you want to change which series a trophy appears in, you'll probably need to edit \fig\ty_fig_data_en.dat, but I don't think anyone knows anything about the structure of that file or how to edit it.
I mean the game they came in, from first to latest. Such as Waluigi = Mario Tennis, Mario Kart Double Dash. And thanks!