There needs to be some sort of Hydration defensive Vap too. Scald / Roar / Wish / Rest on rain stall is just HELL for people to deal with and it is the PERFECT partner for both Forretress and Ferrothorn as hazard layers.
The Hydration tank doesn't necessarily need Life Orb. I would probably slash Leftovers as well due to Vaporeon's speed.
Baton Pass Vap deserves Surf as the slash, not Scald. Baton Pass as ZERO time to be fucking around with Scald and burns. The only time Vaporeon will attack is when it is trying to kill something with the +SpA boosts it receives in the chain. At that point Scald is just a weaker move. 90% of BP Vaps have Acid Armor anyway, so what the hell is the point of trying to burn anything?
ImStillGood (Salamence) (M) @ Life Orb
EVs: 252 SAtk / 252 Spd
Rash Nature (+SAtk, -SDef)
Draco Meteor / Flamethrower / Brick Break / Roost