>>45698073In the old gens especially, there was kind of 3rd type pokemon who were kind of treated as having a third type. Venomoth, butterfree and noctowl all were kind of implied as being psychic types even though they weren't.
Also the early gens weren't necessarily like a grass leader but more of the idea of what a grass type leader should embody. So hence erika having a clefairy. She was meant to be sweet, nice and calm.
