
Well, now that Ferrothorn isn't around to plague our favorite Dragon-type anymore, I saw it relevant to make a thread about Kingdra.
In 4th generation UU, Dragon-type Pokemon were a rare sight in the metagame, few teams resorting to impractical choices such as Shelgon and Dragonair. As everybody is familiar with Kyurem, stronger, more efficient Dragon-type Pokemon will definitely take 5th generation to an early storm. Kingdra is no exception.
Sets:One of Kingdra’s most notable traits is its unique Water- / Dragon-typing, which conveniently grants it only one weakness and a neutrality to Ice- and Electric-type attacks. Additionally, when taken into account that the Water- and Dragon-type moves have nearly unresisted coverage with each other, Kingdra does have the power to break through teams with its dual STAB attacks.
That’s not where the fun ends; to fix up its seemingly average Speed, Kingdra has access to two gamechanging options: Dragon Dance and Rain Dance. Whereas Dragon Dance can be easily executed in various ways for an impending sweep, Rain Dance, paired with Kingdra’s Swift Swim ability, has the potential to destroy many teams immediately, especially weather-oriented ones. Despite competition for a moveslot with other Dragon-type Pokémon, this unique seahorse should never be underestimated, as it can turn the tide on a seemingly bad-looking game in an instant.
Name: Mixed Rain Dance
Move 1: Rain Dance
Move 2: Waterfall
Move 3: Hydro Pump / Surf
Move 4: Draco Meteor
Ability: Swift Swim
Nature: Mild
Item: Life Orb
Evs: 80 Atk / 252 SpA / 176 Spe
One of Kingdra's best, most dangerous sets in UU. This version of Kingdra also puts many weather-based teams in danger. This Kingdra is also efficiently capable of fitting onto any balanced or offensive team, taking away Sandstorm and Sunlight while being such a hassle in Rain. After Rain Dance, Kingdra will outspeed everything after scarved base 100 Pokemon, making this incredible hard to counter. With only a weakness in the Dragon-type, Rain Dance is easily set up. On another note, Hydro Pump is easily one of the most powerful attacks in the game, OHKOing bulky Metagross and Zapdos amongst other things.
Name: Special Rain Dance
Move 1: Rain Dance
Move 2: Dragon Pulse
Move 3: Hydro Pump
Move 4: Draco Meteor
Ability: Swift Swim
Nature: Modest
Evs: 4 Def / 252 SpA / 252 Spe
My personal favorite Kingdra set. Though similar to Mixed Rain Dance, this also has the potential of putting all teams in danger. After Rain Dance, only Scarved Pokemon above the Base 110 range can outrun Kingdra. Kingdra doesn't even have to worry about Attack, replacing Waterfall with a very consistent, powerful Dragon Pulse. Though nitpicky, the increased defenses may actually help Kingdra take a little more hits, too, such as V-Create. Bulkier threats are promptly destroyed with Draco Meteor or Hydro Pump.
Name: ChestoRest Dragon Dance
Move 1: Dragon Dance
Move 2: Waterfall
Move 3: Outrage
Move 4: Rest
ability: Swift Swim
Nature: Adamant
Item: Chesto Berry / Lum Berry
Evs: 144 HP / 160 Atk / 40 SpD / 164 Spe
Name: Substitute + DD
Move 1: Substitute
Move 2: Dragon Dance
Move 3: Outrage
Move 4: Waterfall
ability: Swift Swim
item: Lum Berry / Leftovers
Evs: 4 HP / 252 Atk / 252 Spe
Reminisce of Chesto Rest, except Kingdra is made to use Dragon Dance over a situated period of time with substitutes. Lum Berry humiliates most status users such as Chansey by Dragon Dancing on the status move with Lum Berry, and Substitute on the second attempt. Otherwise, Leftovers makes Kingdra naturally robust.
Kingdra's most efficient set in OU. In UU, because it sets up in front of many things such as Chansey and other defensive Pokemon, setting up Dragon Dance is now easier than before with the absense of Ferrothorn. After a few Dragon Dances, Kingdra will absolutely destroy almost everything in sight.
...and these are just a few of the many seets that Kingdra can run. With its dual STABs and ability to turn the game with a boosting move, Kingdra can run dangerously in the UU, even if Dream World Poliwag is banned with it. Kingdra is also one of the few checks to the popular Sun teams, capable to switching into Grass- and Fire-type moves.
Counters: Some Water-absorbers. They can even absorb Draco Meteor well, easily recovering damage. Empoleon is also a pure counter to Kingdra, resisting its Dual STABs forcing Kingdra out in any way, such as Roar. Ferroseed also resists its STABs, though it's relatively uncommon as of now.
Kingdra also doesn't enjoy passive damage due to trying to set up over many turns. Other than that, there are few that can actually switch into it.
And there you have it: a good offensive force in the UU metagame. Don't discount it too much, as..."it can turn the tide on a seemingly bad-looking game in an instant."