I got two scizors with night slash. - i see no use for them, just use them one time and do not revive.
They have not many more CP then Scyther, but with metal typing, they get an effective 25%-defense-buff, as metal resists almost everything (i know, fire. But scizor is not a defender at all, and you will not attack into fire with it).
Kingdra is double resistant to water and fire. I would try him against vaporeon, maybe he does well.