... but is also the most battle-hardened (and also allegedly the worst tempered IRL)
Some of Stay Gold's trainers were convinced he was the devil. Not even Dream Journey, who was notoriously temperamental to the point any sort of transportation required sedation, was that fierce.
There was one time Stay Gold just decided he was gonna run to the front and then start zigzagging to screw with the other runners. He legitimately could have won races but thought griefing the others was funnier
