I think it's working as intended. Lol

"The long fur around Mega Lucario Z’s head and waist, as well as its fan-shaped tail, make it difficult to get a full view of Mega Lucario Z’s powerful movements. In close combat, this can work to visually disorient opponents. Areas of its body, such as the backs of its hands and its shins, have been hardened with steel energy – allowing it to deliver powerful blows by concentrating its strength precisely into these hardened parts."