Ambipom
I absolutely love your Ambipom's concept; however, a Ghost lead screws you. Use it carefully, and it scores a win.
Cinccino
I like the chinchilla as an animal overall, and Cinccino is no exception; however, its role is so similar to Ambipom's that I'm gonna recommend changing it.
Try some dual-typed Pokémon. Dr Dude and gau22's Diggersby ideas that complete each other is very good because it will score +1 on Bouffalant if you predict well.
Diggersby @ Choice Scarf:
Trait: Huge Power
EVs: 252 HP / 252 Speed / 4 HP
Jolly Nature
- U-Turn
- Earthquake
- Return
- Spikes
I swear Scarfed Spikes work. You deposit layers on what cannot touch you, then you switch. Rest of attacks is abusing Huge Power.
Furfrou
I like the caniche as an animal in general, and Furfrou is no exception; however, I am going to suggest another "physical wall" with a second typing:
Enoch.EXE's recommended Staraptor to Mr Kijani in his own Mono-Normal. (I credit both "trainers" for the set)
Staraptor @ Leftovers:
Trait: Intimidate
EVs: 252 HP / 252 Def / 4 SDef
Impish Nature
- Brave Bird
- FeatherDance
- Substitute
- Roose
Using Furfrou is not wrong, either, as you can opt for offensive Staraptor over something else. However, I prefer this set, because in the name of my brother, it works.
Bouffalant
The core formed with Diggersby will want you to keep it. It moveset, however, seems random.
Let's fix that, you want?
Bouffalant @ Leftovers
Ability: Sap Sipper
EVs: 252 HP / 252 Atk / 4 Def
Adamant Nature
- Substitute
- Head Charge
- Earthquake
- Stone Edge / Swords Dance
As Bouffalant forces many switches, you have nice oppotunities to set up Substitute and Swords Dance, optionally. Stone Edge can give you EdgeQuake, on the other part, so chose carefully. And Power Herb Skull Bash is waste of time.
Exploud
Actually, Scrappy means Boomburst still damages Ghosts, which is a nice plus.
Porygon-Z
Trying to bluff the choice item? I like that; however, you have more better choices.
Gonna recommend the ever-eternal Meloetta.
Meloetta-Pirouette @ Expert Belt:
Trait: Serene Grace
EVs: 252 SpAtk / 72 Atk / 184 Speed
Naive Nature
- Relic Song
- Close Combat
- Thunder
- Ice Punch
Well, what Meloetta excels the most at is to create pressure on your opponent. Willing to eat an Ice Punch on your face, Landorus? And you, Tyranitar, would you like Close Combat on your figure? And Thunder is risky; however, 60 % chance to induce paralysis is worth it. And Relic Song is your toy allowing form changes from a bulky to a fast sweeper.
I hope this helps!
~ Sincerely yours, Blitz.