sorry. i see, so that's the criteria for the guide. yes it's true, it's easy to figure some of them lol. people can see from bulbapedia about egg moves and such. eq + rock attacks was popular back in gen 5, super effective against a lot of pokemon.
haven't played competitively since then. maybe the usefulness has changed now. okay then. my bad about ninetales, didn't see the vulpix + solarbeam compatibility. thanks! if i find something gimmick like thunder+compoundeyes, i'll let you know.