Pokémonological facts #1: When it is born, it's completely white, with small and weak paws and a tail that, oddly enough, is made out of muscles alone, no bones. This gives it the ability to wrap its tail around pretty much anything that's small enough. It's got huge eyes in the first form...
While it grows in its first form, parts of its body (the same ones that are like a coat of armour on the third form) start getting gray, and end up black.
Once it has gotten enough iron from the food (or reached level 30), the iron is transferred to the cells in the black areas. Slowly, in some unknown way, they make the hairs, which are at that time very normal, transform into some kind of a strange, light type of metal. The hairs will also start sticking together, as long as the body part in question is not moving. For example, the tail is one of the armoured areas, but if they keep moving it, the hairs won't stick together, just transform into metal, making them quite easily moveable once the transforming is over and it evolves into the third form (level 55)... same with the armored parts that reach a little down onto the legs, if they run around a bit, those areas will just be metallic hair, leaving them quite limber. However, with the face mask it's a bit different. The hair doesn't just transform, more of the metal is formed on the outside to make the mask thicker. Then, when it has covered the parts where it touches the skin, it starts growing out, that is, the blade at the top of its head and the ones at the sides. The ones at the sides, though, first grow in that little spike that points up, then go on further back. The spike that points up can show their age pretty well, because while the long blades only grow to a certain length at most, but the spikes keep growing its whole life, very slowly but steadily. Also, while it does vary between individuals, the spikes sometimes go pretty straight up and sometimes they bend forward.
The claws are also made of metal, but a bit differently constructed one that one's not as light and darker in color. The paws grow a lot in size after the claws start forming, because the metal simply bulges them out. They can't withdraw their claws, either. Next picture: A close-up of a paw.
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