Ok, all sections are done now. Considering that Porygon2's performance in UU is mediocre at best... I decided to keep its update OU based rather than UU based.
----------------------
[SET]
name: Defensive Duck
move 1: Discharge / Thunderbolt
move 2: Ice Beam
move 3: Recover
move 4: Toxic / Thunder Wave / Magic Coat
item: Leftovers
ability: Trace
nature: Bold
evs: 252 HP / 216 Def / 40 SpA
[SET COMMENTS]
<p>
With monstrous offensive threats such as Gyarados, Salamence, and Heatran looming in every corner there is almost no single Pokemon that can reliably counter them all at the same time. However, one brave Pokemon still stands strong as being a reliable option to combatting all three of them, that Pokemon is Porygon2. Using its near exclusive ability, Trace, Porygon2 copies Intimidate and cuts Gyarados' and Salamence's Attack on the switch in, allowing it to easily take the beatings. Discharge does a minimum of 75% to Gyarados, OHKOing after Stealth Rock, and Thunderbolt does a minimum of 90%, OHKOing if it launches an attack, thanks to the Life Orb recoil. Porygon2 is also the game's best Dragon Dance Salamence counter, being able to survive a +1 Life Orb Outrage, after it Traces Intimidate, and OHKO back with Ice Beam.
</p>
<p>
Porygon2's usefulness doesn't stop there. It can switch into Heatran, Vaporeon, and Jolteon, with impunity, thanks to Trace. It is immune to Fire when it switches into Heatran and forces it out, threatening paralysis. As long as Heatran isn't holding Choice Specs Porygon2 can easily take an Earth Power and recover off the damage. Jolteon and Vaporeon's STAB attacks heal Porygon2, allowing him to wall them to no end unless they are carrying Toxic. These examples are just scratching the surface of Porygon2's vast potential. Even Pokemon you can't really take advantage of have a hard time beating Porygon2; outside of STAB Fighting moves and powerful Choice Banded attacks, he can usually tank the hits and deal back damage in return with his special attack or Toxic or simply cripple them with paralysis.</p>
<p>
As far as moveslot 4 goes, Thunder Wave is standard allowing Porygon2 to cripple sweepers. Toxic is another good option when coupled with Recover, you can get out of many tough situations with stalling alone. Magic Coat bounces status attacks back at the user, which can be fun, especially when Bronzong or Yanmega put themselves to sleep. This is a lot of fun and really annoys the opponent. Porygon2 can easily cripple many sweepers with paralysis. Recycle can be interesting, used with a Sitrus Berry, Leppa Berry or Lum Berry. Sitrus is a free 25% health boost, turning many 2HKOs into 3HKOs. Leppa allows you to stall forever, because Porygon2 will never run out of PP. Lum Berry serves as a temporary status shield that can be replenished at any time.
</p>
<p>Porygon2's above average defenses and stellar ability allow it to be the "glue" that holds an offensive team together and protects it from being utterly swept by offensive threats such as Salamence, Gyarados, and Heatran. Pokemon that can lure in counters that Porygon2 can take care of easily make excellent partners. Heatran and Scizor come to mind as being excellent lures to Salamence, Gyarados, and opposing Heatran, all of which Porygon2 deftly handles.</p>
<p> Beware of surprise status, however, especially from the likes of Heatran who often carries Toxic. If badly poisoned or burned, Porygon2's walling capabilities are severely crippled. As such, carrying a cleric on your team would be beneficial. Celebi gets special mention for its fighting resistance, to which Porygon2 happens to be weak.</p>
<p> Once in play, Porygon2 will almost assuredly lure in Fighting types. On an offensive team, having a solid switch-in to the vast majority of Fighting types is nigh required. Pokemon such as Gyarados, Gengar, and other Fighting resistant / immune Pokemon make great partners to absorb the Fighting attacks likely to be aimed at Porygon2.</p>
[SET]
name: Trick Room
move 1: Trick Room
move 2: Thunderbolt
move 3: Ice Beam
move 4: Recover
item: Leftovers
ability: Trace
nature: Quiet
evs: 252 HP / 120 Def / 136 SpA
ivs: 0 Spe
[SET COMMENTS]
<p> Porygon2 is an excellent user of the move Trick Room due to its natural bulk and low speed. The strategy is simple. Take a hit, set up Trick Room, and respond to your opponent. Because Porygon2 will almost always go first, having a lot of Defense EVs is a waste of his potential. You'll have a really quick Recover to keep you healthy, so the remaining EVs are poured into Special Attack, turning Porygon2 into a fast, bulky special attacker.</p>
<p> Because Porygon2 is bulky enough to use Trick Room several times a match, it is not recommended you sacrifice him like some other Trick Roomers. Keep him in good shape and you can set up Trick Room as often as you want. </p>
<p> Because of Porygon2's unique typing as a Trick Room user, it's not that hard to justify his position in a Trick Room team. His lack of a dark weakness and immunity to Ghost, a quality that most other Trick Room users are left without, affords him an easy spot on most teams.</p>
<p> When using Porygon2 on a Trick room team, using Pokemon that can switch-in and threaten common Porygon2 switch-ins is highly advised. Using Rhyperior, Machamp, and other physically bulky Pokemon that can come in on Blissey and Tyranitar (common Porygon2 switch-ins) will not only keep your Porygon2 alive, but will soften the blow of bringing in your Trick Room sweepers.</p>
[SET]
name: Charge Beam
move 1: Charge Beam
move 2: Ice Beam
move 3: Tri Attack
move 4: Recover
item: Leftovers
ability: Trace
nature: Modest
evs: 252 HP / 120 Def / 136 SpA
[SET COMMENTS]
<p>
Porygon2's natural resilience paired with Charge Beam allows it to become a dangerous boosting tank. In fact, Blissey without Toxic or Calm Mind will never beat this Porygon2 since Porygon2 can Recover off any damage Blissey does and 2HKO most variants with a +6 Tri-Attack. Ice Beam is your other main attack move to give BoltBeam coverage alongside Charge Beam.
</p>
<p> Using Porygon2 offensively calls for a few changes regarding team support. Once the threat of status is gone, powerful physical attackers such as Tyranitar, Infernape, and Metagross as well as Blissey will come in to rain on your parade. The common denominator between most of the Pokemon that like to come in on offensive Porygon2, however, is that they are all nicely taken care of by Dugtrio. Using a Pokemon with U-turn to lure in these threats and switching in to a Dugtrio is highly advised when using this offensive Porygon2. Pokemon such as Celebi, Zapdos, and Azelf will entice the opponent to switch their Pokemon in, only to meet their impending doom as you U-turn to Dugtrio. With their heavy physical attacker and special wall out of the way, Porygon2 is free to boost up and sweep.</p>
[SET]
name: Trick Specs
move 1: Trick
move 2: Recover
move 3: Ice Beam
move 4: Discharge
item: Choice Specs
ability: Trace
nature: Modest
evs: 252 HP / 120 Def / 136 SpA
[SET COMMENTS]
<p> Porygon2's innate ability to lure in Blissey along with heavy Physical attackers makes the prospect of tricking a Choice Specs very appealing, and with a respectable 105 base Special Attack it can pose a mild offensive threat before crippling one of the opponent's Pokemon with an unwanted choice item.</p>
<p>
This is less bulky than the other set, but it's not a problem, as Gyarados and friends are still handily beaten. The Choice Specs allow you to take advantage of Porygon2's Special Attack so it'd be a waste not to boost it with some EVs and a Modest nature. Please note that you can no longer take on Salamence with this spread, as a +1 Life Orb Outrage will OHKO on average if there is Stealth Rock up. The Trick Specs set is less versatile than the other sets, due to being restricted to one move, but once you've Tricked something, it will function much more reasonably.
</p>
<p>
This Porygon2 is much more support oriented than the other more defensively or offensively based versions. When using this Porygon2, it is advised to use Pokemon that can take advantage of weakened choiced physical attacks. Also, Specially based Pokemon that can take advantage of a Blissey unable to both threaten with Seismic Toss and Softboiled at the same time are prime partners for this type of Porygon2.
</p>
[Team Options]
<p> Defensive Porygon2 fits very nicely on offensive teams that have crippling weaknesses to Salamence, Gyarados and Heatran. Teams that carry Choice Band Scizor will love having a Porygon2 as these three Pokemon are very common switch-ins. With U-turn and Porygon2's ability to force these threats out it will go a long way to weakenig the opponent's defenses to the point where Scizor can make a sweep attempt. Other offensive Pokemon that will bring these threats in include Heatran, Breloom, and Heracross. It should be noted, however, that mixed and Choice Specs Salamence will beat Porygon2, so having a potential switch-in to it is generally a good idea. Specially Defensive Heatran gets special mention for not only luring in Dragon Dance versions to which Porygon2 takes care of, but being able to handle the Specs versions that Porygon2 can't. On less offensive teams, Porygon2 works very nicely with Pokemon that have resistances to its one weakness, Fighting such as Cresselia, Gliscor, and other fighting resistance Pokemon. Unfortunately, combinations of other Pokemon can take on everything that Porygon2 can, and then some. Because of this, using Porygon2 on a stall team isn't always the best idea.</p>
<p> Offensive versions of Porygon2 are stopped handidly by most physical attackers that have a reasonable Special Defense stat, or carry a resistance to one of its attacking moves. Metagross, Tyranitar, Heracross, Machamp, and Lucario will come in with relative impunity, especially when the threat of status is gone, and fire incredibly powerful attacks Porygon2's way. Defensively, Blissey with Toxic will easily wall and stall Porygon2. Luckily nearly all of these threats can be taken out with Choice Band Dugtrio before a sweep with Porygon2. Using a second special attacer that lures in these threats that carries the move U-turn to go out to Dugtrio is also recommended. Zapdos, Celebi, and Azelf fit those criteria very well.</p>
<p> As a general rule of thumb, Porygon2 is more of a glue Pokemon meant to fix a team's innate weaknesses, rather than being the centerpiece of a team. As such, attempting to force Porygon2 onto a team that doesn't need it is a bad idea. If, however, your team has trouble with the threats that Porygon2 handles, it makes a very reliable pivot Pokemon, especially on offensive teams.</p>
[Other Options]
<p>
Porygon2 has some other Electric attacks at its disposal, such as Zap Cannon. While inaccurate, it causes paralysis if it hits. This can be very handy for crippling a powerful sweeper as it switches in to smack your Porygon2 around. Conversion2 guarantees you will resist your opponent's last attack. Signal Beam can hit Celebi and other Psychics quite hard. Shadow Ball and Dark Pulse help against Gengar and Rotom. Recycle and Rest can be used for a quick, reusable Chesto Rest but Recover is generally better. Defense Curl can be used over Recycle on the Special Defensive Duck set, patching up your compromised defense. Psych Up can copy Calm Minds from an opponent like Suicune; thanks to your Electric attacks and Recover you should come out on top. Tri Attack can be used over Ice Beam in some sets, but then you are walled by Rotom. Hidden Power Fire can be used to ward off Steels like Scizor and Metagross. If you can come in on Heatran's Fire Blast, it becomes a fairly powerful attack thanks to the Flash Fire boost.
</p>
<p>
Hidden Power Ground can find some use on the Defensive Duck set, as it helps against Heatran, but more importantly, kills Magnezone (who is trapped thanks to Porygon2's Trace. Remember, though, that selecting Hidden Power Ground with require an IV drop in Special Attack, meaning that you'll need to invest 44 SpA EVs in order to guarantee 75% with Discharge and 90% with Thunderbolt on Gyarados.
</p>
<p>
Porygon2 can make use of Sharpen to beat Blissey 1 on 1 with Return, but outside of defeating Blissey it doesn't accomplish much of anything. Porygon2 can be EVed to combat special attackers, but you are almost always better off using Blissey for this role or even Snorlax.
</p>
[EVs]
<p>
Porygon2 you'll generally just want to max out HP and distribute the majority of the EVs to defense and no less then 40 Special Attack EVs on Bold natured sets to best combat Gyarados. Distributing the EVs to Special Defense can work but generally Porygon2 is better off taking on physical attackers. More offensive sets can even run Modest, with as much as 136 Special Attack EVs. Any more power isn't all that worth it.
</p>
<p>
Porygon2 can really be EVed to do pretty much anything... just be careful you aren't overspecializing and wasting its potential. The EV spreads listed here are only general guidelines, you can tweak them for a more offensive approach, or add more bulk.
</p>
[Opinion]
<p>
An interesting Pokémon to use, as it can do almost anything. Porygon2 can make a nice mixed tank, unlike the only other Tracer, Gardevoir. It also spreads status effects as if it had a big sneeze and sprayed its disgusting bacteria everywhere with every status effect possible. Although Porygon2 was initially ignored, it later was used more often because of its ability to stop several OU sweepers, the most notable of which is Gyarados. Unfortunately, its versatility leads to a downfall: it can be tailored to do anything, but as we all know from real life, multi-tasking is hard, and Porygon2 finds it hard as well. Essentially, it's good at everything, but not great at anything. However, Porygon2 is destructive to any opponent's team if used correctly, and is very usable in OU.
</p>
[Counters]
<p>
Very few Pokemon can switch into Porygon2 without being debilitated, either by Trick, Toxic, paralysis, or an elemental attack. Its balanced defenses and Recover make him a pretty sturdy Pokemon, so it takes considerable firepower to OHKO or even 2HKO. Fighting types in general are excellent choices, especially those with Guts, like Heracross, Machamp and Hariyama. They can take Porygon2's status attacks with little or no detriment to themselves, and scare it off with Fighting attacks. Hitmonlee gets particular mention because its Limber ability gives it an immunity to Thunder Wave, and with its high Special Defense it can come in on non-STAB Thunderbolt and Ice Beam with little worry.
</p>
<p>
Metagross and Tyranitar are sturdy enough to take any attack Porygon2 can throw at them, and they don't mind being paralyzed much. Blissey can wall Porygon2 with ease and take anything but boosted Tri-Attacks and Trick. Electivire can come in on predicted Electric attacks and threaten with Cross Chop.
</p>
<p>
Take advantage of Porygon2's relatively low damage output and speed, and just keep hitting it hard. It can't stand up to repeated beatings for long.
</p>
----------------------
[SET]
name: Defensive Duck
move 1: Discharge / Thunderbolt
move 2: Ice Beam
move 3: Recover
move 4: Toxic / Thunder Wave / Magic Coat
item: Leftovers
ability: Trace
nature: Bold
evs: 252 HP / 216 Def / 40 SpA
[SET COMMENTS]
<p>
With monstrous offensive threats such as Gyarados, Salamence, and Heatran looming in every corner there is almost no single Pokemon that can reliably counter them all at the same time. However, one brave Pokemon still stands strong as being a reliable option to combatting all three of them, that Pokemon is Porygon2. Using its near exclusive ability, Trace, Porygon2 copies Intimidate and cuts Gyarados' and Salamence's Attack on the switch in, allowing it to easily take the beatings. Discharge does a minimum of 75% to Gyarados, OHKOing after Stealth Rock, and Thunderbolt does a minimum of 90%, OHKOing if it launches an attack, thanks to the Life Orb recoil. Porygon2 is also the game's best Dragon Dance Salamence counter, being able to survive a +1 Life Orb Outrage, after it Traces Intimidate, and OHKO back with Ice Beam.
</p>
<p>
Porygon2's usefulness doesn't stop there. It can switch into Heatran, Vaporeon, and Jolteon, with impunity, thanks to Trace. It is immune to Fire when it switches into Heatran and forces it out, threatening paralysis. As long as Heatran isn't holding Choice Specs Porygon2 can easily take an Earth Power and recover off the damage. Jolteon and Vaporeon's STAB attacks heal Porygon2, allowing him to wall them to no end unless they are carrying Toxic. These examples are just scratching the surface of Porygon2's vast potential. Even Pokemon you can't really take advantage of have a hard time beating Porygon2; outside of STAB Fighting moves and powerful Choice Banded attacks, he can usually tank the hits and deal back damage in return with his special attack or Toxic or simply cripple them with paralysis.</p>
<p>
As far as moveslot 4 goes, Thunder Wave is standard allowing Porygon2 to cripple sweepers. Toxic is another good option when coupled with Recover, you can get out of many tough situations with stalling alone. Magic Coat bounces status attacks back at the user, which can be fun, especially when Bronzong or Yanmega put themselves to sleep. This is a lot of fun and really annoys the opponent. Porygon2 can easily cripple many sweepers with paralysis. Recycle can be interesting, used with a Sitrus Berry, Leppa Berry or Lum Berry. Sitrus is a free 25% health boost, turning many 2HKOs into 3HKOs. Leppa allows you to stall forever, because Porygon2 will never run out of PP. Lum Berry serves as a temporary status shield that can be replenished at any time.
</p>
<p>Porygon2's above average defenses and stellar ability allow it to be the "glue" that holds an offensive team together and protects it from being utterly swept by offensive threats such as Salamence, Gyarados, and Heatran. Pokemon that can lure in counters that Porygon2 can take care of easily make excellent partners. Heatran and Scizor come to mind as being excellent lures to Salamence, Gyarados, and opposing Heatran, all of which Porygon2 deftly handles.</p>
<p> Beware of surprise status, however, especially from the likes of Heatran who often carries Toxic. If badly poisoned or burned, Porygon2's walling capabilities are severely crippled. As such, carrying a cleric on your team would be beneficial. Celebi gets special mention for its fighting resistance, to which Porygon2 happens to be weak.</p>
<p> Once in play, Porygon2 will almost assuredly lure in Fighting types. On an offensive team, having a solid switch-in to the vast majority of Fighting types is nigh required. Pokemon such as Gyarados, Gengar, and other Fighting resistant / immune Pokemon make great partners to absorb the Fighting attacks likely to be aimed at Porygon2.</p>
[SET]
name: Trick Room
move 1: Trick Room
move 2: Thunderbolt
move 3: Ice Beam
move 4: Recover
item: Leftovers
ability: Trace
nature: Quiet
evs: 252 HP / 120 Def / 136 SpA
ivs: 0 Spe
[SET COMMENTS]
<p> Porygon2 is an excellent user of the move Trick Room due to its natural bulk and low speed. The strategy is simple. Take a hit, set up Trick Room, and respond to your opponent. Because Porygon2 will almost always go first, having a lot of Defense EVs is a waste of his potential. You'll have a really quick Recover to keep you healthy, so the remaining EVs are poured into Special Attack, turning Porygon2 into a fast, bulky special attacker.</p>
<p> Because Porygon2 is bulky enough to use Trick Room several times a match, it is not recommended you sacrifice him like some other Trick Roomers. Keep him in good shape and you can set up Trick Room as often as you want. </p>
<p> Because of Porygon2's unique typing as a Trick Room user, it's not that hard to justify his position in a Trick Room team. His lack of a dark weakness and immunity to Ghost, a quality that most other Trick Room users are left without, affords him an easy spot on most teams.</p>
<p> When using Porygon2 on a Trick room team, using Pokemon that can switch-in and threaten common Porygon2 switch-ins is highly advised. Using Rhyperior, Machamp, and other physically bulky Pokemon that can come in on Blissey and Tyranitar (common Porygon2 switch-ins) will not only keep your Porygon2 alive, but will soften the blow of bringing in your Trick Room sweepers.</p>
[SET]
name: Charge Beam
move 1: Charge Beam
move 2: Ice Beam
move 3: Tri Attack
move 4: Recover
item: Leftovers
ability: Trace
nature: Modest
evs: 252 HP / 120 Def / 136 SpA
[SET COMMENTS]
<p>
Porygon2's natural resilience paired with Charge Beam allows it to become a dangerous boosting tank. In fact, Blissey without Toxic or Calm Mind will never beat this Porygon2 since Porygon2 can Recover off any damage Blissey does and 2HKO most variants with a +6 Tri-Attack. Ice Beam is your other main attack move to give BoltBeam coverage alongside Charge Beam.
</p>
<p> Using Porygon2 offensively calls for a few changes regarding team support. Once the threat of status is gone, powerful physical attackers such as Tyranitar, Infernape, and Metagross as well as Blissey will come in to rain on your parade. The common denominator between most of the Pokemon that like to come in on offensive Porygon2, however, is that they are all nicely taken care of by Dugtrio. Using a Pokemon with U-turn to lure in these threats and switching in to a Dugtrio is highly advised when using this offensive Porygon2. Pokemon such as Celebi, Zapdos, and Azelf will entice the opponent to switch their Pokemon in, only to meet their impending doom as you U-turn to Dugtrio. With their heavy physical attacker and special wall out of the way, Porygon2 is free to boost up and sweep.</p>
[SET]
name: Trick Specs
move 1: Trick
move 2: Recover
move 3: Ice Beam
move 4: Discharge
item: Choice Specs
ability: Trace
nature: Modest
evs: 252 HP / 120 Def / 136 SpA
[SET COMMENTS]
<p> Porygon2's innate ability to lure in Blissey along with heavy Physical attackers makes the prospect of tricking a Choice Specs very appealing, and with a respectable 105 base Special Attack it can pose a mild offensive threat before crippling one of the opponent's Pokemon with an unwanted choice item.</p>
<p>
This is less bulky than the other set, but it's not a problem, as Gyarados and friends are still handily beaten. The Choice Specs allow you to take advantage of Porygon2's Special Attack so it'd be a waste not to boost it with some EVs and a Modest nature. Please note that you can no longer take on Salamence with this spread, as a +1 Life Orb Outrage will OHKO on average if there is Stealth Rock up. The Trick Specs set is less versatile than the other sets, due to being restricted to one move, but once you've Tricked something, it will function much more reasonably.
</p>
<p>
This Porygon2 is much more support oriented than the other more defensively or offensively based versions. When using this Porygon2, it is advised to use Pokemon that can take advantage of weakened choiced physical attacks. Also, Specially based Pokemon that can take advantage of a Blissey unable to both threaten with Seismic Toss and Softboiled at the same time are prime partners for this type of Porygon2.
</p>
[Team Options]
<p> Defensive Porygon2 fits very nicely on offensive teams that have crippling weaknesses to Salamence, Gyarados and Heatran. Teams that carry Choice Band Scizor will love having a Porygon2 as these three Pokemon are very common switch-ins. With U-turn and Porygon2's ability to force these threats out it will go a long way to weakenig the opponent's defenses to the point where Scizor can make a sweep attempt. Other offensive Pokemon that will bring these threats in include Heatran, Breloom, and Heracross. It should be noted, however, that mixed and Choice Specs Salamence will beat Porygon2, so having a potential switch-in to it is generally a good idea. Specially Defensive Heatran gets special mention for not only luring in Dragon Dance versions to which Porygon2 takes care of, but being able to handle the Specs versions that Porygon2 can't. On less offensive teams, Porygon2 works very nicely with Pokemon that have resistances to its one weakness, Fighting such as Cresselia, Gliscor, and other fighting resistance Pokemon. Unfortunately, combinations of other Pokemon can take on everything that Porygon2 can, and then some. Because of this, using Porygon2 on a stall team isn't always the best idea.</p>
<p> Offensive versions of Porygon2 are stopped handidly by most physical attackers that have a reasonable Special Defense stat, or carry a resistance to one of its attacking moves. Metagross, Tyranitar, Heracross, Machamp, and Lucario will come in with relative impunity, especially when the threat of status is gone, and fire incredibly powerful attacks Porygon2's way. Defensively, Blissey with Toxic will easily wall and stall Porygon2. Luckily nearly all of these threats can be taken out with Choice Band Dugtrio before a sweep with Porygon2. Using a second special attacer that lures in these threats that carries the move U-turn to go out to Dugtrio is also recommended. Zapdos, Celebi, and Azelf fit those criteria very well.</p>
<p> As a general rule of thumb, Porygon2 is more of a glue Pokemon meant to fix a team's innate weaknesses, rather than being the centerpiece of a team. As such, attempting to force Porygon2 onto a team that doesn't need it is a bad idea. If, however, your team has trouble with the threats that Porygon2 handles, it makes a very reliable pivot Pokemon, especially on offensive teams.</p>
[Other Options]
<p>
Porygon2 has some other Electric attacks at its disposal, such as Zap Cannon. While inaccurate, it causes paralysis if it hits. This can be very handy for crippling a powerful sweeper as it switches in to smack your Porygon2 around. Conversion2 guarantees you will resist your opponent's last attack. Signal Beam can hit Celebi and other Psychics quite hard. Shadow Ball and Dark Pulse help against Gengar and Rotom. Recycle and Rest can be used for a quick, reusable Chesto Rest but Recover is generally better. Defense Curl can be used over Recycle on the Special Defensive Duck set, patching up your compromised defense. Psych Up can copy Calm Minds from an opponent like Suicune; thanks to your Electric attacks and Recover you should come out on top. Tri Attack can be used over Ice Beam in some sets, but then you are walled by Rotom. Hidden Power Fire can be used to ward off Steels like Scizor and Metagross. If you can come in on Heatran's Fire Blast, it becomes a fairly powerful attack thanks to the Flash Fire boost.
</p>
<p>
Hidden Power Ground can find some use on the Defensive Duck set, as it helps against Heatran, but more importantly, kills Magnezone (who is trapped thanks to Porygon2's Trace. Remember, though, that selecting Hidden Power Ground with require an IV drop in Special Attack, meaning that you'll need to invest 44 SpA EVs in order to guarantee 75% with Discharge and 90% with Thunderbolt on Gyarados.
</p>
<p>
Porygon2 can make use of Sharpen to beat Blissey 1 on 1 with Return, but outside of defeating Blissey it doesn't accomplish much of anything. Porygon2 can be EVed to combat special attackers, but you are almost always better off using Blissey for this role or even Snorlax.
</p>
[EVs]
<p>
Porygon2 you'll generally just want to max out HP and distribute the majority of the EVs to defense and no less then 40 Special Attack EVs on Bold natured sets to best combat Gyarados. Distributing the EVs to Special Defense can work but generally Porygon2 is better off taking on physical attackers. More offensive sets can even run Modest, with as much as 136 Special Attack EVs. Any more power isn't all that worth it.
</p>
<p>
Porygon2 can really be EVed to do pretty much anything... just be careful you aren't overspecializing and wasting its potential. The EV spreads listed here are only general guidelines, you can tweak them for a more offensive approach, or add more bulk.
</p>
[Opinion]
<p>
An interesting Pokémon to use, as it can do almost anything. Porygon2 can make a nice mixed tank, unlike the only other Tracer, Gardevoir. It also spreads status effects as if it had a big sneeze and sprayed its disgusting bacteria everywhere with every status effect possible. Although Porygon2 was initially ignored, it later was used more often because of its ability to stop several OU sweepers, the most notable of which is Gyarados. Unfortunately, its versatility leads to a downfall: it can be tailored to do anything, but as we all know from real life, multi-tasking is hard, and Porygon2 finds it hard as well. Essentially, it's good at everything, but not great at anything. However, Porygon2 is destructive to any opponent's team if used correctly, and is very usable in OU.
</p>
[Counters]
<p>
Very few Pokemon can switch into Porygon2 without being debilitated, either by Trick, Toxic, paralysis, or an elemental attack. Its balanced defenses and Recover make him a pretty sturdy Pokemon, so it takes considerable firepower to OHKO or even 2HKO. Fighting types in general are excellent choices, especially those with Guts, like Heracross, Machamp and Hariyama. They can take Porygon2's status attacks with little or no detriment to themselves, and scare it off with Fighting attacks. Hitmonlee gets particular mention because its Limber ability gives it an immunity to Thunder Wave, and with its high Special Defense it can come in on non-STAB Thunderbolt and Ice Beam with little worry.
</p>
<p>
Metagross and Tyranitar are sturdy enough to take any attack Porygon2 can throw at them, and they don't mind being paralyzed much. Blissey can wall Porygon2 with ease and take anything but boosted Tri-Attacks and Trick. Electivire can come in on predicted Electric attacks and threaten with Cross Chop.
</p>
<p>
Take advantage of Porygon2's relatively low damage output and speed, and just keep hitting it hard. It can't stand up to repeated beatings for long.
</p>
