Does a Cloyster fare better against a Dragonite than a Lapras, or even a Dewgong, does?
On the Gameinfo site, it claims that Cloyster is 100% effective when fighting a Dragonite, while a Lapras has a score of 94%. Dewgong has an effectiveness rating of 80%. (All of them have Frost Breath and Blizzard and all three Pokemons have the type Water / Ice). Why does Cloyster work better than a Lapras or a Dewgong?
In practice, I find Cloyster dying quite soon due to its low HP. Dewgong even works better than Cloyster, but Lapras is best due to its high HP.