>>57348714i was generally thinking the way to translate it to the games would essentially be
>you can't Delta into the same type (so if you're water/psychic, you can't Delta into a water type nor a psychic type>when you switch a Pokemon it, it automatically Deltas as opposing to choosing when you tera>still has the same weaknesses as its previous typing>however, the STAB it has from its previous typing is translated into the new typing (so Mew's Psychic, for example, would be Fire type and have its usual STAB boost)>>57348842i don't mind regional forms as a concept either, but most of them fall flat for me and are generally better off as "convergent species". for example i love the hell out of alolan sandshrew's and sandslash's designs, but i hate how they're still named after sand when their theming is clearly ice-related.
with that in mind delta species are absolutely different from regional forms, they're pokemon given auras by holon's energy. in a way it's proto-terrastallation but with less of the bullshit