[SET]
name: Choice Scarf
move 1: Surf
move 2: Hydro Pump
move 3: Hidden Power Ice
move 4: Secret Sword
item: Choice Scarf
nature: Timid
evs: 4 HP / 252 SpA / 252 Spe
[SET COMMENTS]
<p>With a Choice Scarf equipped, Keldeo might lack the wallbreaking power of its other sets, but instead becomes a powerful revenge killer and late-game sweeper for use on rain teams. At 129, Keldeo has the highest base Special Attack stat of all Water-type Pokemon available in OU; this and its excellent Speed clearly make it the best Pokemon for the job. It's extremely satisfying to see an opponent attempt to revenge kill Keldeo with Jolteon or Tornadus-T only to find that they are outrun and OHKOed by Hydro Pump or even Surf after Stealth Rock damage. Though running both of these STAB moves together might seem strange, Keldeo really doesn't need to use much else, and doesn't have many other options anyway. Surf is the staple move, but often the additional power of Hydro Pump will be required to revenge kill a specific threat. Secret Sword is relatively weak, but it will help to deal with troublesome opponents such as Blissey, Chansey, and Ferrothorn, 2HKOing all three. Other than that, Keldeo has very few options besides Hidden Power. Hidden Power Ice is the best, as it allows Keldeo to revenge kill threats such as Dragonite, which it will outrun even after two Dragon Dances, as well as +1 Salamence. Even when super effective, Hidden Power Ice is still not significantly more powerful than a resisted Hydro Pump in the rain, but it will hit targets such as Breloom more accurately, and is more effective against them outside of rain.</p>
[ADDITIONAL COMMENTS]
<p>As Keldeo tends only to spam Water-type attacks, a variety of other moves can be used in place of Hidden Power Ice or Secret Sword, though none are frequently useful. Hidden Power Psychic mauls Toxicroak, which would otherwise completely wall Keldeo, while doing a little more to Tentacruel, Breloom, and Amoonguss. However, using this requires the use of a 30 Speed IV, causing you to lose out on a Speed tie with opposing Keldeo and Terrakion. Hidden Power Electric will OHKO all common Gyarados variants after Stealth Rock damage, and will do significantly more (and yet still not nearly enough) damage to Jellicent. Hidden Power Grass will do good damage to Gastrodon, Hidden Power Flying will maim Breloom and Virizion, and Hidden Power Bug might allow you to break through Celebi. If using any of these options, Icy Wind can replace Hidden Power Ice, as it still allows you to revenge kill weakened Dragonite and Salamence. Focus Blast could potentially be used for its good power, but won't break through Chansey and Blissey, which was largely the point of Secret Sword in the first place—Secret Sword is not a power move, but rather a coverage move. Scald could be used for its spectacular secondary effect, while Toxic could be used to cripple some opposing walls (such as Jellicent).</p>
<p>As far as support is concerned, Politoed should be the number one teammate; it provides the power that Keldeo really needs, even if it stacks up your team's weaknesses a bit. Other teammates should be used to remove Keldeo's hard counters, of which there are a fair few. Most critical are Celebi, Jellicent, Latias, Toxicroak, Amoonguss, and Tentacruel—these pokemon are not only resistant or immune to Water, but also extremely durable and as such usually require trapping. Choice Specs Gothitelle is probably your best option in this respect, especially variants with Signal Beam, as they can take out Celebi. Alternatively, a number of these Pokemon are weak to Pursuit, and as such Weavile, although not generally a strong option in OU, is a rather good partner. If you don't want to base your team around a Keldeo sweep in this way, other Ice- and Psychic-types can at least force these Pokemon out. Finally, it's worth supporting Keldeo with Stealth Rock, because it lets Keldeo revenge kill Dragonite, and helps to wear down Water-resistant Pokemon as you hit them with repeated Surfs and Hydro Pumps. If you manage to take down those few very troublesome Pokemon, not much can handle Keldeo's barrage of rain-boosted Water-type attacks.</p>
name: Choice Scarf
move 1: Surf
move 2: Hydro Pump
move 3: Hidden Power Ice
move 4: Secret Sword
item: Choice Scarf
nature: Timid
evs: 4 HP / 252 SpA / 252 Spe
[SET COMMENTS]
<p>With a Choice Scarf equipped, Keldeo might lack the wallbreaking power of its other sets, but instead becomes a powerful revenge killer and late-game sweeper for use on rain teams. At 129, Keldeo has the highest base Special Attack stat of all Water-type Pokemon available in OU; this and its excellent Speed clearly make it the best Pokemon for the job. It's extremely satisfying to see an opponent attempt to revenge kill Keldeo with Jolteon or Tornadus-T only to find that they are outrun and OHKOed by Hydro Pump or even Surf after Stealth Rock damage. Though running both of these STAB moves together might seem strange, Keldeo really doesn't need to use much else, and doesn't have many other options anyway. Surf is the staple move, but often the additional power of Hydro Pump will be required to revenge kill a specific threat. Secret Sword is relatively weak, but it will help to deal with troublesome opponents such as Blissey, Chansey, and Ferrothorn, 2HKOing all three. Other than that, Keldeo has very few options besides Hidden Power. Hidden Power Ice is the best, as it allows Keldeo to revenge kill threats such as Dragonite, which it will outrun even after two Dragon Dances, as well as +1 Salamence. Even when super effective, Hidden Power Ice is still not significantly more powerful than a resisted Hydro Pump in the rain, but it will hit targets such as Breloom more accurately, and is more effective against them outside of rain.</p>
[ADDITIONAL COMMENTS]
<p>As Keldeo tends only to spam Water-type attacks, a variety of other moves can be used in place of Hidden Power Ice or Secret Sword, though none are frequently useful. Hidden Power Psychic mauls Toxicroak, which would otherwise completely wall Keldeo, while doing a little more to Tentacruel, Breloom, and Amoonguss. However, using this requires the use of a 30 Speed IV, causing you to lose out on a Speed tie with opposing Keldeo and Terrakion. Hidden Power Electric will OHKO all common Gyarados variants after Stealth Rock damage, and will do significantly more (and yet still not nearly enough) damage to Jellicent. Hidden Power Grass will do good damage to Gastrodon, Hidden Power Flying will maim Breloom and Virizion, and Hidden Power Bug might allow you to break through Celebi. If using any of these options, Icy Wind can replace Hidden Power Ice, as it still allows you to revenge kill weakened Dragonite and Salamence. Focus Blast could potentially be used for its good power, but won't break through Chansey and Blissey, which was largely the point of Secret Sword in the first place—Secret Sword is not a power move, but rather a coverage move. Scald could be used for its spectacular secondary effect, while Toxic could be used to cripple some opposing walls (such as Jellicent).</p>
<p>As far as support is concerned, Politoed should be the number one teammate; it provides the power that Keldeo really needs, even if it stacks up your team's weaknesses a bit. Other teammates should be used to remove Keldeo's hard counters, of which there are a fair few. Most critical are Celebi, Jellicent, Latias, Toxicroak, Amoonguss, and Tentacruel—these pokemon are not only resistant or immune to Water, but also extremely durable and as such usually require trapping. Choice Specs Gothitelle is probably your best option in this respect, especially variants with Signal Beam, as they can take out Celebi. Alternatively, a number of these Pokemon are weak to Pursuit, and as such Weavile, although not generally a strong option in OU, is a rather good partner. If you don't want to base your team around a Keldeo sweep in this way, other Ice- and Psychic-types can at least force these Pokemon out. Finally, it's worth supporting Keldeo with Stealth Rock, because it lets Keldeo revenge kill Dragonite, and helps to wear down Water-resistant Pokemon as you hit them with repeated Surfs and Hydro Pumps. If you manage to take down those few very troublesome Pokemon, not much can handle Keldeo's barrage of rain-boosted Water-type attacks.</p>