>>33805361As an astronomy minor some of yours are a little off, lemme help
Mercury Fire/Rock
Venus Poison/Fire (good idea honestly)
Earth Water/Grass
Mars Ground/Ice (it has polar caps of frozen carbon dioxide)
Jupiter Flying/Rock (Jupiter is almost entirely hydrogen, with a somewhat rocky core)
Saturn Flying/Ice
Uranus Flying/Ice
Neptune Flying/Ice (though I'm tempted to switch one of those out with electric because storm wise it's pretty active)
Gas Giants are boring balls of gas and ice, there isn't much to use to type them really unless you want to distinct them between which has more ammonia which has more hydrogen which has more helium etc
Mercury being a rock with no atmosphere it can reach a temp around 400-500 degrees F in its daytime so that's cool to use rock/fire
Venus is a lovely planet with a toxic atmosphere, acidic rain, incredibly hot, that's a smart type choice
Earth is the only planet with grass so why not use that?
Mars is pretty cold and dry, with frozen poles of dry ice
Gas Giants suck. Try typing their moons though, some of the moons of these gas Giants are really unique even compared to the terrestrial planets