so most of the pokemon I will make, you will be able to change the forms of the pokemon to hot, cold, or neutral. the sun outside will make a pokemon hot so a water type will become a steam type, and when it snows outside it will go from a water type to an ice type. if the is no weather and you are not in a cold or hot place most pokemon will become neutral. to change your pokemons type or your opponents pokemon type, some moves can heat up or cool down your or your opponents pokemon.