[Because he knows the pattern. Sora-Roxas, Braig-Xigbar (damn him), Myde-Demyx. But he knows Roxas had memory problems with remembering Sora and any connection to him, so maybe this is the same. Well, puzzling later, kicking ass now.]
Got it! [And he pivots on one foot to throw his Keyblade in a Strike Raid; it whacks through another Dusk once on the way out and once on the way back, and he's running at the next the moment it returns to his hand to fire off a Thundaga spell followed by a kick to its... face? Pseudo-face. Thing.]
MAYBE A SONG ABOUT RAINBOWS (AND WHAT'S ON THE OTHER SIDE)
Got it! [And he pivots on one foot to throw his Keyblade in a Strike Raid; it whacks through another Dusk once on the way out and once on the way back, and he's running at the next the moment it returns to his hand to fire off a Thundaga spell followed by a kick to its... face? Pseudo-face. Thing.]