Or Perhaps Space Helmets...
Daido juku
How would your WCK stack up against these "lowely karate folk?"Karate, usualy styles originating out of the kyokushin style which has a long history of bareknuckle full contact competition and kickboxing connections, has begun to adapt competition closer to the Mixed martial art(MMA) format. Daido juku is one of those karate styles (originaly splintering out from kyokushin karate in 1981), starting to spread out from japan.
Using helmets, they allow headbuts, groinkicks, basicaly anything. Including limited time grappling.