Yōsuke Yoneya/Abilities

Although he comes off as the head-first type, Yōsuke can be very crafty and analytical. He realized that Yūma was trying to lull Shun into a false sense of security before the tides of the match were turned, and quickly found multiple ways to circumvent Koskero's Trigger. On the other hand, his passionate behaviour in battle allows him to keep fighting even one the battle seems settled, as shown when, after receiving a fatal wound from Ai, he pushed her out of the window to be killed by Izumi.

Triggers
Gen'yo Kogetsu - A spear that can change length of the grip as well as shape of the tip. However it seems to share more similarities with Scorpion despite being called Kogetsu.