You know. I just realized that Green's ENTIRE team makes a lot more sense, including her Blastoise. If Red and his Venusaur symbolizes friendship and kindness and Blue and his Charizard symbolizes passion and power then Green and her Blastoise symbolizes brutality and deception... I am not kidding lol. Her team's theme of deception, including two of her Pokemon are a callback to Pokemon Adventures however I don't think the writer even realized that Blastoise is actually a very brutal Pokemon lol. Yes! For those who don't know the Pokdex has consistently described Blastoise's use of his body, from his cannons to his heavy weight, throughout the generations as brutal when in action. Paired with the fact that she has Victreebeel modelled after a Venus Fly Trap, Gengar and Ninetales which embodies the ideas of tricksters and curses and finally the violent over-protectiveness of Kangaskhan, her team makes a lot of sense. The only Pokemon that truly stands out is Clefable which is most likely just put in there out of team balance and a subtle reference to the Pokemon Adventures manga. Other than that, I thought it was pretty interesting when I found out how Blastoise's battle style is and it's described as brutal. The funny thing is that both the anime and manga do not really touch upon the fact how Blastoise battles, it's something you only hear in the Pokedex and to see it possibly out of nowhere in a Let's Go game, seven generations ahead makes you wonder if GameFreak simply just gave Green the Blastoise by default at first and then later just happen to notice this fact about Blastoise's Pokedex entry and started to build a team around this theme.