At what point did I say Ariados beat the whole team?
Like I said before (please, for the love of God learn to read posts?) Ariados doesn't die in one hit, like Smeargle. And he doesn't get Magnet Pulled like Foretress. Unlike Drapion and Tentacruel, he has the insomnia ability and can absorb sleep. Night Shade is a big help too, it's useful in the same way Blissey pulls off siesmic toss (to hurt things it can only 0.5, works well against Dusknoir, Skarm and Shuckle) Also, unlike Smeargle and Foretress (and let's drag Cloyster into this while we're at it) Ariados eliminates Toxic Spikes upon entry.