in this case was awakened facing the fishing lines and fear of loosing and failing gyro, he was dedicated towards killing the motor guy (mr whir whir man i forgot his name) and is most likely going to be used to help fight.

my best guess because ive never read sbr is it will allow him to beat the boy.

my guess is because a evolution stand is based on the users situation and ta4 is for valentine which jhonny dosent know yet