Barehand Tile Breaking was called "barehand," but not in the literal sense.
Tile Breaking had originally been a physical move for Fighting Type Pet Beasts, but during the second Interstellar Cup, an exceptional man named Yilier used his Bug-type Pet Beast, the Masked Black Spider, to shatter an Aurora Curtain deployed by his opponent's Psychic-type Pet Beast, defeating them and becoming famous in a single battle.
The key move used to break the Aurora Curtain was Tile Breaking.
Tile Breaking could destroy wall-type moves such as Light Wall and Reflect, so breaking an Aurora Curtain was nothing unusual. What was unusual was that the one using Tile Breaking was actually a Bug-type Pet Beast.
As everyone knew, attributes were an extremely important factor in battles, and Bug Types had always been recognized by Beast Masters as the weakest attribute.
Even if there were a few rare and powerful Bug-type Pet Beasts, that could not change the fact that Bug Types were the weakest.
After all, individual cases could not represent an entire species.
Yet the Masked Black Spider, which was neither rare nor a Fighting Type, had actually used Tile Breaking and defeated a Psychic-type Pet Beast. It had practically stunned everyone watching the Interstellar Cup at the time.
In the post-match interview, Yilier clearly stated that even Pet Beasts that were not Fighting Types could use Fighting Type moves as long as they were willing to work hard.
Those words directly sparked a Fighting Type craze, and quite a few people really did get their Pet Beasts to learn Fighting Type skills.
Even Beast Masters who had failed to teach their Pet Beasts Fighting Type skills posted online, saying that their Pet Beasts' resistance to damage had improved considerably.
From then on, Barehand Tile Breaking officially entered the public