Pokémons. You can group servers by Pokémon type. Servers named Bulbasaur, Chicorita and Bellsprout probably have similar purposes, since they are all leaf Poké

Pokémons. You can group servers by Pokémon type. Servers named Bulbasaur, Chicorita and Bellsprout probably have similar purposes, since they are all leaf Pokémons. Another example, Charmander and Charizard. They both have the same purpose (since it's the same Pokémon 'species') but Charizard is a better server (because Charizard is Charmander's last evolution).