If I had to pick just one starter to destroy the ass of or draw destroying ass then it would be Charizard, Feraligatr, Sceptile, Empoleon, Samurott, Chesnaught, Incineroar, Cinderace, and Meowscarada!
And if I'm allowed to pick any amount of starters then Blastoise, Venasaur, Typhlosion, Meganium, Swampert, Blaziken, Emboar, Delphox, Greninja, Primarina, Inteleon, and Quaquaval join the list too!! I'm never subby so I'd dominate each and every one of them but that doesn't mean I wouldn't draw them destroying some ass!! :)c