>>55662193>They are available nowhere close to each otherNo, but they're all lines that require trading to evolve, and many have speculated that trade evolutions were supposed to have a concept similar to what Gen 5's Karrablast and Shelmet have in that the evolution would only happen if a specific pair of Pokemon were traded. Ergo, the idea was that Graveler/Machoke and Kadabra/Haunter would incite evolutions by exchanging aspects about themselves.
Golem loses the second pair of arms it had as a Graveler and gains a more reptilian form, meanwhile Machamp becomes even more humanoid and gains a second pair of arms.
Alakazam loses its thick bushy tail, but ultimately sacrificing the appendage allows it to afford to maintain its ever-growing brain, meanwhile Gengar gains enough mass to assume a fully realized physical form and lurk in the shadows, although because of its mass, it now has to sacrifice its looser, gaseous form and floating hands to do so.
