any suggestions on what i should replace and whatnot?
clefable should stay. it's annoying in the good way. Ninetales did literal zero. Ampharos doesn't seem like it did very much, but I guess that was just me. Your Greninja isn't at its fastest, plus you've already have crobat who does p much the same thing.
Clefable - go full physical or go home
ninetales - its ability is crippling. Magmortar has great special defense and can will o wisp as well as use a large movepool.
ampharos - either rework its moves or cut it. What is her purpose on your team?
Greninja - if you want to scald, scald the right way. Gastrodon, Swampert and Empoleon are great scalders. Vaporeon is good too, but I don't know if you like eevees
my team members all have a purpose.
crustle/plebble - entry hazards
darmanitan/aouti - wall smashing
venusaur/zaeus - fairy and bulky water killer. Also good staller.
froslass/mileena - deception and annoyance. Life4Life.
Barbaracle/tub - Force swap to sweep
Blissey/Kilonia - Special walling, team healer