Toshiki Kai

Toshiki Kai's powers and abilities

Despite not having PSY Qualia himself, Kai possesses a few abilities reminiscent of said power. The most notable is his bond with Dragonic Overlord, which throughout the series has evolved to match Kai's feelings. When he was searching for the power to beat Ren, it evolved into Dragonic Overlord the End. When Kai was Reversed, it evolved into Dragonic Overlord "The Яe-birth". When he learned the value of mates, it evolved into Perdition Emperor Dragon, Dragonic Overlord the Great. Also, he was able to see Brandt.

He is consistently touted as being the best player in terms of raw ability, and his name quickly becomes well known throughout the world.

He also demonstrates an incredible ease mastering new units, an ability showcased numerous times in season 1. On several occasions, he nearly completely rebuilds his deck once new cards are released, but plays them effectively and effortlessly as though he'd been using them his whole life. He is the first to show off Superior Riding, the Megablast technique, Crossriding, the Persona Blast technique, Limit Break, Ultimate Break, and Legion (technically however, due to the English anime not dubbing Season 4, that makes Ibuki the first to display Legion in English specifically, though Kai does use Legion later on).

It is worth noting that Kai acknowledges a similar ability in Ren, but Ren's seems to be more based off an intuition for how cards work together than Kai's more experience based skill.