Pokemon Rebuild Thread:
Rebuild any Pokemon to be better/more competitively viable or to have stats/type/movepool/abilities/ect more fitting for it's design

Golduck:
New Type: Water/Psychic
New Stats: 80/62/78/120/80/100/BST:520
New Abilities: Swift Swim/Cloud Nine/(HA)Psycho Prowl
Psycho Prowl: Doubles Speed in Psychic Terrain
New Moves: Agility, Nasty Plot, Power Gem, Expanding Force, Earth Power, Shadow Ball
With these changes, Golduck could act as a slower, but more powerful alternative to Starmie with similar bulk but less utility/status moves
With it's two speed-boosting abilities, it could either abuse Rain or Psychic Terrain. Meaning it can fit on a variety of different teams. Psycho Prowl synergizes especially well w/ Expanding Force

Typhlosion:
New Stats: 78/69/85/119/78/106/BST:535
New Abilities: Solar Power/Volt Absorb/(HA)Blaze
New Moves: Earth Power, Explosion, Hurricane, Twister, Thunder, Thunderbolt, Discharge
I've decided to give it Solar Power to make it more unique as a Fire-Type. I know Charizard already gets SP, but I think Zard should get different abilities anyway. I gave Typhlosion Volt Absorb/Electric-Type moves because thunderstorms happen near volcanoes and a Fire-Type immune to Electric-Type moves is unique and would give Typhlosion something over other similar Fire-Types