Also cool Nidoqueen/Nidoking signature. They look like some kind of J-Pop couple or strangely reminds me of this card anime I once saw as a kid, girl protagonist and some tsundere boy? Ring any bells?Ah Nidoqueen. I still remember you from the very first time I played Pokemon Yellow. Young me was too impatient to raise a balanced 6-man team (Which was actually kinda logical given how annoying the grinding was back then) so raised soloed the entire game with just a Nidoqueen. The fact that Nidoran (F) learned Double Kick was a godsend against Brock's gym after my Pikachu ran into obvious issues, and I also remember debated whether or not to evolve my Nidorina into Nidoqueen before or after Misty's gym given the added Ground type. In subsequent replays of that game I always chose Nidoking though. Actually, what set the sovereign Nidos apart back in gen 1 was their incrediblely wide movepool giving them access to TM's like Bubblebeam, Thunderbolt, Ice Beam, Surf, and Fire Blast. Talk about wide coverage at a time where most Pokemon back then were lucky to get an attack outside of their STAB and a Normal attack!
Anyways, the game has changed a lot since gen 1, and Nidoqueen now faces still competition from a lot of Pokemon including it's male counterpart which has better speed and offenses. That's not to say less of Nidoqueen given it's bulkier than the king and still has pretty much all the moves that it does. So don't write Nidoqueen off just yet.
Ability: Sheer Force
EV's: HP: 252 Def: 156 Sp.Def: 100
Poison Jab/Ice Beam
Pretty self explanatory. Set up your entry hazards of choice where Tox. Spikes spreads disease and Stealth Rock does damage and hit Flying types that resist one of Nidoqueen's two STAB's. With Sheer Force Poison Jab becomes Nidoqueen's strongest move and Earthquake serves as a secondary STAB. THough you can opt for a special set replacing Poison Jab with Ice Beam and Earthquake with Earth Power since both moves get the ability boost and has better coverage against certain check. Change the nature accordingly to suit this.
Bubblebeam is extremely weak even with the Sheer Force boost, and doesn't really hit anything important that isn't already taking a ton of damage from either Earth Power or the already much more niche Ice Beam.I think Crunch deserves a mention on a physical set, as it gets boosted by Sheer Force and beats Ghost- and Psychic-types.
Likewise, Bubble Beam works well on a special set, although getting a Nidoqueen with that move requires transferring one from a Virtual Console Generation I game.