And why aren't Razor Claw and Razor Fang also available? The latter is especially bothersome because it's a 5% chance... on Bruxish. They don't even provide a freebie in case you obtain a Gligar and want to evolve it.
The confusion and annoyances go further than that: The game tells you
that Gligar and Sneasel have evolutions, but not how to obtain them. Heck, imagine you're a newbie who's just seen Gladion use Weavile in his last fight in SM. You decide you want a Weavile for yourself. Where do you even begin?
Identifying Sneasel as the pre-evo, and then finding it, is easy enough. It's pretty common in Mount Lanakila, a place you'll be heading to straight after the Gladion battle anyway. But evolving it? Why, you have to get an item the game doesn't tell you about, by using a not-very-effective move on a rare Pokémon appearing on the other side of the map, and it will only work 5 % of the time so good luck finding out about that in the first place. Then you have to deduce that Sneasel is meant to hold this obscure item, without any help from the item description since it only mentions Critical Hit rate, and level up at night with it. "Non-intuitive" doesn't even begin to cover how absurd this is.
So of course, you go online. The Pokémon games are, probably unintentionally, pretty well-designed to build online communities dedicated to them. The games have so much content, and much of it is very explicitly shown to you but not explained in detail. The prime example being trainers who use rare Pokémon you can't readily find out how to obtain. This drives the need for websites containing this information, which again foster discussion communities. Minecraft also used this to great effect, pulling people online for more information, and then providing a wiki and official discussion forums to welcome the eager newbies.
However, and here's the big annoyance: Pokémon only provided the part about pulling people online, but didn't provide a place to compile information. Fans did. Huge fan communities, like Serebii and Bulbapedia, bloom because they have the information Game Freak didn't provide yet still made you reliant on.
And here's the even bigger annoyance:
Somehow, Game Freak manages to act like they don't know these fan sites exist. They manage to tailor conditions so that people would need to band together online to find information about the games, yet market the games as if they have no fans above the age of ten. It's not like the Internet is a new phenomenon, but up until
2012 they thought they could do all their marketing exclusively in Japan for half a year before revealing the games in the West, and they still seem to cling on to the idea that they can give exclusive news on Japanese kids' shows or magazines without their international fans noticing.
I'm willing to bet that over 99 % of all English-language Pokémon gamers have used information found on Serebii, Bulbapedia, or other big fan portals. Perhaps not by themselves, but by asking an older friend or sibling who found the information online. The communities provide the
de facto source for in-depth information about the Pokémon games. Yet Game Freak seems completely oblivious to their existence, or at least they did for embarrassingly long (somebody snuck in Serebii's Pokéarth graphic on a poster in ORAS, around the time they started dropping news on YouTube instead of CoroCoro). It's really confusing how a company can foster such great communities devoted to their games, yet still act all ignorant about their existence.