I would say use Dracovish over Dracozolt. While it gets Fishious Rend at a late level, you at least get it in time for Leon. Moves like Crunch and Psychic Fangs are also very good coverage. However, you should opt for Dracozolt if you don't want type overlap with Barraskewda.
Good Dracovish moves:
Good Dracozolt moves:
Sirfetch'd is better than Grapploct, as it has a better movepool. The evolution method can be a bit tricky, however.
Good Sirfetch'd moves:
Knock Off/Swords Dance (setup usually isn't necessary in game, however)
Barraskewda has a much more varied movepool than Drednaw, and can hit quite hard. In game, where hyper offense is crucial, this is important.I
Good Barraskewda moves:
Crunch/Close Combat/Poison Jab
Hope I helped!