>>47827609With starters, they usually design the final first and then make the pre-evos by working backwards.
>Nishida: “I created the designs for Bulbasaur, Charmander, and Squirtle by working backward from their final forms. I wanted people to be surprised when it evolved into Charizard, so I designed the original Charmander in such a way that Charizard would be unimaginable.”So they would have started with Incineroar first, and then made Litten and Torracat. You can especially tell that Torracat was made with Incineroar in mind since it shares Incineroar's top-heavy build, fire ornament, and the reference sheet shows it standing on its hind legs.