Wow, can't wait for Saiga Sakaba owning Spriggan-- Chou-z? Never heard of that season. (sarcasm lol)
It'd be strange if Aiga were to obtain spriggan as that would break the pattern of Burst series with the characters first letter being the same as they beys. Plus, it'd mean Chou-z's story about Aiga's growth as a blader with his bey Achilles would be reduced to nothing-- a side story. It's not in terms of whether Shu is passing his bey down to a new user but it'd literally mess up the whole pattern and Aiga's story. He made his bey all on his own and fought his way to victory with Achilles no matter the odds-- why would he suddenly give up a bey he bonded so well with and earned so much with just because Shu wants to pass down his bey?
Also Shu was more of a supporter than a mentor to Aiga-- Aiga had to discover and learn things on his own mostly. Sure, he of course had help from other characters through his journey-- but ultimately he followed his own heart and Achilles. Shu might have helped with the process of making Chou-Z Achilles, but Aiga learning more things about it were more on his own.
There hasn't really been a passing down of beys considering these beys were usually made by the new users-- Xhan and Fumiya for example. Xhan asked if he could name his bey after Xhaka's bey and Fumiya was inspired to make Fafnir due to Free being a top blader. The only character to have a passed down bey was Ranjiro and even he upgraded to a Chou-Z bey.
It'd be strange if Aiga were to obtain spriggan as that would break the pattern of Burst series with the characters first letter being the same as they beys. Plus, it'd mean Chou-z's story about Aiga's growth as a blader with his bey Achilles would be reduced to nothing-- a side story. It's not in terms of whether Shu is passing his bey down to a new user but it'd literally mess up the whole pattern and Aiga's story. He made his bey all on his own and fought his way to victory with Achilles no matter the odds-- why would he suddenly give up a bey he bonded so well with and earned so much with just because Shu wants to pass down his bey?
Also Shu was more of a supporter than a mentor to Aiga-- Aiga had to discover and learn things on his own mostly. Sure, he of course had help from other characters through his journey-- but ultimately he followed his own heart and Achilles. Shu might have helped with the process of making Chou-Z Achilles, but Aiga learning more things about it were more on his own.
There hasn't really been a passing down of beys considering these beys were usually made by the new users-- Xhan and Fumiya for example. Xhan asked if he could name his bey after Xhaka's bey and Fumiya was inspired to make Fafnir due to Free being a top blader. The only character to have a passed down bey was Ranjiro and even he upgraded to a Chou-Z bey.