With Swords Dance to back up those great STAB moves and that impressive Attack stat, this version of Kabutops can be a devastating sweeper. Stone Edge and Aqua Tail provide superb coverage, only resisted by Toxicroak, Poliwrath, and Quagsire in UU. Waterfall is a deadly, reliable STAB move that carries a potential flinch chance, and it is the primary option for Kabutops's main STAB move. However, Aqua Tail becomes noticeably more powerful in the rain, where a Swords Dance boosted Aqua Tail OHKOes Miltank, Hitmontop, and Weezing, as well as Registeel and Uxie most of the time. A Swords Dance and Life Orb boosted Aqua Jet is a very potent weapon and can OHKO many fast but frail sweepers, such as Blaziken, Nidoking, Houndoom, and Hitmonlee.
If you want some more coverage on Kabutops, you can swap Aqua Jet for one of several coverage moves, though this is not recommended since Aqua Jet's safeguard against priority is far more valuable than covering certain niche Pokemon. X-Scissor is perhaps the most notable option to deal slightly more damage to two of Kabutops's deadliest foes--Slowbro and Tangrowth--although it barely out-damages STAB Stone Edge and will not come close to OHKOing either without a lot of previous damage. On the other hand, Return will 2HKO Poliwrath and Quagsire after a Swords Dance, both of whom Kabutops cannot beat otherwise.
There are two separate sets here: Standard and Rain Dance. In both cases, maximizing Kabutops's Attack stat should be your first priority. If you are not running rain, Kabutops needs maximum Speed to at worst tie with other base 80 Speed Pokemon, such as Venusaur, Mesprit, Blaziken, and Altaria. Waterfall should also be used with this set due to its reliability. However, if you are running a Rain Dance team, an Adamant nature and Aqua Tail are preferable for the greater damage output, which guarantees the death of such threats as Uxie and Registeel. Alternatively, you can try a bulkier spread of 112 HP / 248 Atk / 148 Spe, which gives Kabutops a much easier time setting up on physical threats such as Swellow and Arcanine when rain is not up, while still enabling it to beat Choice Scarf Rotom in the rain.
If not running Rain Dance on your team, you should note that Kabutops is much easier to stop. Kabutops's greatest threats are bulky Water-, Grass-, and Fighting-types. Thus, Venusaur makes an excellent partner to Kabutops, as it resists the STAB attacks of all those types and can hit back with its own STAB moves; Slowbro and Tangrowth are both OHKOed by special sets. Drapion is another option, as it too can deal with Tangrowth and can also trap Slowbro with STAB Pursuit. Bulkier versions are also helpful, as they can use Whirlwind to rack up residual damage. Both Drapion and Venusaur can also absorb Toxic Spikes. Lastly, strong Fire-types such as Thunder Fang Arcanine and Passho Berry Houndoom can bait out and weaken Water-types, allowing Kabutops to overpower them later on. Fire-types, particularly Moltres, can also break down Grass- and Fighting-types.
While Swords Dance Kabutops is fully capable of being used as a standalone sweeper, it truly excels on a Rain Dance team. Electrode is the fastest Rain Dance lead in the game and is guaranteed to set it up. As for other teammates, Uxie is extremely reliable at setting up Rain Dance and can also set up Stealth Rock, Reflect, and Light Screen to aid in Kabutops's sweep. It can also grant Kabutops a free switch with Memento and is a good stop to Toxicroak. Entry hazards are also helpful for Kabutops's sweep and can be set up by Pokemon such as Registeel and Uxie, both of whom also have access to Rain Dance. Below are some damage calculations to show off Kabutops's potentiel.
+2 Aqua Tail in rain vs. 252/252+ Uxie: 97.5% - 114.7%
+1 Aqua Tail in rain vs. 252/252+ Hitmontop: 105.9% - 124.7%
+2 Aqua Tail in rain vs. 252/252+ Weezing: 109% - 128.7%
+2 Aqua Tail in rain vs. 252/224+ Miltank: 103.8% - 122.6%
+2 Aqua Tail in rain vs. 252/0 Registeel: 109.9% - 129.7%
+2 Aqua Tail in rain vs. 252/0 Venusaur: 91.8% - 108%
+2 Stone Edge vs. 252/0 Leafeon: 91.6% - 107.8%
+2 Stone Edge vs. 248/252+ Milotic: 91.1% - 107.6%
+2 Stone Edge vs. 0/0 Toxicroak: 98.7% - 116.3%
+2 Aqua Jet in rain vs. 252/0 Hitmontop: 87.2% - 103%
+2 Aqua Jet in rain vs. 4/0 Hitmonlee: 175.2% - 207%
One problem with Rain Dance is its limited duration. Therefore, there are two ways to use this Kabutops in the rain. The first is to bring it in early and break your opponent's team, while relying on other rain sweepers to clean up afterward, and the other is to whittle down your opponent's team with the relentless pressure of other rain sweepers, bringing in Kabutops to take down anything left standing. On this note, Ludicolo is an excellent partner to Kabutops for its ability to frighten away Tangrowth, Slowbro, and Milotic. Qwilfish can also break the opponent's team--by setting up Swords Dance and threatening a sweep, the opponent may be forced to sacrifice their bulky Water-type to Qwilfish's Explosion. Alternatively, it can also set up Spikes. On the special side, Gorebyss and Omastar are the most potent teammates. Gorebyss is indifferent to the priority moves that plague Kabutops and has Psychic to get rid of Toxicroak and Poliwrath; however, Omastar is faster and hits slightly harder.