Nidoking

Nidoking is the quintessential blue-collar Pokemon. It evolves from one of the earliest Pokemon you encounter in RBY, its stats aren't flashy--the best it gets is base 92 Attack--and its typing is a strange Poison / Ground mixture that you wouldn't expect to be great defensively. Regardless of these reasons for humility, Nidoking has all the right tools to get the job done as the premier mixed attacker of GSC. For starters, its movepool gives it a fairly strong STAB Earthquake coupled with solid super effective coverage moves for physical walls and Pokemon that resist it. Nidoking's immunities to Toxic and Thunder and its base 85 Speed, which is particularly fast by GSC standards, are also nice advantages that Nidoking totes over other attacking threats. However, that's not all Nidoking has to offer, for if that were the case, it would still be outclassed by Pokemon with flashier stat spreads such as Tyranitar and Dragonite. Access to Lovely Kiss is Nidoking's ace in the hole, allowing it to instantly take one of its chief counters out of the game, something the other mixed sweepers can't do.