It's not even that. Look at Alakazam. Slowking. Gardevoir. Hell, look at Meowstic. They've got some pretty nice assortment of moves available. Delphox? Not really much of anything.
Which reminds me... Slowbro/king can learn Flamethrower?! *mind blown*
It's power to do that comes from the power of WTF.
Really, jokes asides mine comes from pokemon mystery dungeon.
I loved abusing swampert
to hell with it's amazing 1 4x weakness, and grinding through the dungeon where you encounter groudon, and one day I killed a arbok (oh so easily
due to thorn spam) and then it asked if it would like to join my party, I said no because I didn't have space for such a weak pokemon. Then later that day/week/month I realized HOLY WTF the game guide says that it cannot be befriended. And then, later on I realized that the game probably does not actually have a pure 0% chance of befriending the pokemon more like 0.000000000000000000000000000000000001% chance if befriending pokemon, thus making the chance for it to happen stupidly, and impossibly low, but still possible, thus making me probably one in like 5-10 people on the planet that this has happened to.
As for story wise, PMD explorers of time..everything, (asides from the "grand master of all things
terrible in combat bad" being wigglytuff. I was like 7/8 when I played it and I was not stupid enough to fall for that.) enough said.