There is a lot of controversy around the Claw. It is unique for sure. For a low increase in weight over Iron Boots (12 kilos), it offers 21% more HP than a plat plate. It kicks as hard as an annihilator.
The HP it offers can benefit any of the 3 classes, but it is designed as a physical item.
Iron Boots, Scorching Feet and Charged Walkers, these are all the same leg, each balanced to the class it is built for. Weight, HP, damage amount and kind of damage are all class specific. What if the same thing was done with the Claw?