At the time I didn't pay it much mind, but after going through the campaign again I noticed that riku did not have his own keyblade when fighting him, he uses Roxas's Oblivion keybade. At the moment I'm thinking that after kh chain of memories when riku says to diz that he walking a path between light and darkness, he abandons his old philosophy losing his keyblade but hasn't completely figured out where this path leads thus his new keyblade 'way to dawn' hadn't manifested at the time?
p.s. I noticed that while hes in ansem's form he has his old keyblade during the cutsenes and boss battles with him, (him going switching back to path of darkness) so way to dawn didn't manifest till he reverted back to his normal state.
p.s. I noticed that while hes in ansem's form he has his old keyblade during the cutsenes and boss battles with him, (him going switching back to path of darkness) so way to dawn didn't manifest till he reverted back to his normal state.