-turns around and looks at original 150 sans Mew poster I've had since I was like 6-
Holz, if you super oversimplify things... every single original Pokemon is stupidly uncreative.
"We take some eggs and give them faces - BRILLIANT!"
"We take a mouse and make it evolve into a rat! BRILLIANT!"
"Cats. BRILLIANT!"
"A venus fly trap from a different angle 3 times! BRILLIANT!"
"Exotic dancer. BRILLIANT!"
I think Magneton makes sense, because it's just supposed to be a bunch of Magnemites that fused together to be come more powerful. Beldum > Metang > Metagross does it to amplify their brain count, too.