Mewtwo Strikes Back
Vaporeontwo first appeared in the first Pokémon Movie, Mewtwo Strikes Back. After it was created it battled against Fergus' Vaporeon. However, the battle came to a stop when Ash ran between Mewtwo's and Mew's attacks, which turned him to stone. Like all the other Pokémon, Vaporeon felt utterly miserable about it.
However, the Pokémon's tears healed Ash. Mewtwo used his psychic abilities to lift Vaporeontwo and the other clone Pokémon in the air, and they went away to find a safe home.
None of Vaporeon's moves are known