Vaporeon (F) @ Assault Vest
Nature:Modest or Calm
I noticed no one else had an Assault Vest build for Vaporeon and this is the build I use. The point of this Vaporeon is to be super bulky and deal a good amount of damage to anything it comes up against. I have used this Vaporeon to sweep before but I rely on it mostly to take hits.
Surf does a good amount of damage and has great accuracy. Also it hits everything on the field
Ice Beam should be a staple for every water type. With this move Vaporeon can not only KO grass types easily but also becomes an efficient dragon slayer
Shadow Ball is for coverage. It does a good amount of damage and allows Vaporeon to easily take out Ghost and psychic types should it come up against them
Hidden Power(Fire) is also for coverage. It gives Vaporeon another move to use against Grass types, but that's not its primary focus; Steel types have become much more prevalent since Fairy types came out. With HP(fire) Vaporeon has a move that will surprise the opponent and take out some Steel types easily