Overview
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Despite its cool design, Greninja doesn't have much use in Doubles because it is very niche, outclassed by many other Pokemon, and only able to hit specific Pokemon for major damage. This, however, allows Greninja to perform its role as a sniper very well, asbe tailored to KO specific Pokemon that threaten your team thanks to its insane coverage movepool, combined with its high Speed and Protean, allows it to snipe specific Pokemon that threaten your team. Although it has mediocre offensive stats and isextremely frailer th, Protean paper, Greninja makwhich gives up for it by gaining STAB on every move it uses, and havingits blazing Speed, which allows it to outrun most of the unboosted metagame, most notably Mega Diancie and Mega Metagross, more than makes up for it. Unfortunately, Greninja is easily beaten by Trick Room and Tailwind offensive teams as well as anythingPokemon that can outrun it and hit hard, such as Timid Shaymin-S and common Choice Scarf Pokemonusers. Most importantly, Greninja is limited by what coverage moves it can use; however, its moves can be chosen to beat specific threats to your team.
Special Attacker
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name: Special Attacker
move 1: Hydro Pump
move 2: Ice Beam
move 3: Dark Pulse
move 4: Protect
ability: Protean
item: Life Orb / Focus Sash
evs: 252 SpA / 4 SpD / 252 Spe
nature: Timid
Moves
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KeepBear in mind that these are just standard moves that most Greninja would run; due to its multitude of coverarge movespool, its set can vary depending on the needs of your team. Despite its unreliable accuracy, Hydro Pump is Greninja's strongest STAB move and should be its go-to move against Pokemon that are neutral to Greninja's attacks. Ice Beam provides good coverage and allows Greninja to hit importantcommon Pokemon such as Amoonguss and Hydreigon. Dark Pulse is used to hit bulky Psychic- and Ghost-types harder, such as Creseelia, Jirachi, Mega Metagross, and Aegislash harder. Protect can help withalleviate Greninja's terrible bulkfrailty by shielding it from a potential OHKO and letsting it Greninja stall out opposing Tailwind and Trick Room turns, which allows it to possibly be effective for a turn longer.
Set Details
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252 Speed EVs withand a Timid nature ensures that Greninja has maximum Speed. 252 Special Attack EVs maximizes Greninja's damage output. Life Orb is the preferred item, as Greninja's offensive stats are very subparquite mediocre; also, Greninja doesn't mind Life Orb recoil that much because it is frail. Focus Sash is can option so thatalso be used, though, as it allows Greninja canto take a hit from Pokemon that are faster than it and would otherwise OHKO it, such as Shaymin-S, enabling Greninjait to carry out its sniper role and attack, potentially netting an OHKO. T; the drop in power, however, is very noticeable, however.
Usage Tips
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Greninja works best as a late-game cleaner because its coverage moves, high Speed, and Protean allow it to outrun and hit a lot of Pokemon for super effective damage. It isn't badcan also be used during early-game either because, as it puts insanea lot of offensive pressure on your opponent from the start with its unpredictable moveset, provided that your opponent does not lead with a Pokemon that knows Fake Out user. Despite its frailnessty, Greninja can be used defensively as well, such as by using an attack to change its type so that it gains a resistance or immunity to a predicted incoming attack. Because Greninja is so frail, it isn't recommended to switch it into attacks, however.
Team Options
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Greninja welcomappreciates Helping Hand support, which gives a boost to its mediocraverage offensive stats; Helping Hand allows Greninja to OHKO Mega Metagross with Dark Pulse as well as standard Amoonguss with Ice Beam. Pokemon such as Jirachi and Togekiss work best because they also provide redirection support to mitigate Greninja's terriblelow bulk, as well as speed control to allow Greninja to outrun and threaten foes that would otherwise beat it, such as Shaymin-S. Cresselia also works well with Greninja, as it can provide Helping Hand support, use Icy Wind to slow down opposing Pokemon that are faster than Greninja, such as Shaymin-S, and even reverse opposing Trick Room while Greninja uses Protect, allowing Greninja to become a fast, potentwerful threat again. Thundurus is another Pokemon that provides speed control while also being able to Tauprevent opposing speed control, such as Thunder Wave and Tailwind, with Taunt. It, along with other Electric-types, such as Zapdos and Thundurus-T, can check Water-types that wall Greninja's standard set, most notabespecially Azumarill, Mega Gyarados, and Keldeo. Keep in mind that Thundurus-T needs a Choice Scarf in order to check Keldeo, as it is unable to tank a Hydro Pump. Greninja, in turn, helps them out by checking Rock-types, such as Mega Diancie and Terrakion. Sylveon and Mega Gardevoir are both great offensive partners for Greninja, as they are able to check Fighting-types that, which threaten Greninja, such as Conkeldurr, ands well as Mega Venusaur in the case of Mega Gardevoir. They also provide a powerful spread STAB move which allows Greninja to finish off opposing weakened Pokemon in Hyper Voice. Spread moves in general work well with Greninja, as although it can outspeed and KO a lot of Pokemon, it is still leaves itself vulnerable to your opponent'its other Pokemonfoes if its partner isn't able to KO the foe. They are also benefited greatly by Greninja's ability to remove threats to them such as Mega Metagross, Aegislash, and Heatran.
Other options include Talonflame, which checks bulky Grass-types such as Mega Venusaur and Amoonguss, and Mega Venusaur, which checks bulky Water-types that, which Greninja has trouble breaking through. Terrakion and Breloom are other offensive options because Greninja is able to check Aegislash, which walls both of their STAB moves, as well as opposing Flying-types in the case of Breloom. In return, they both check Ferrothorn, and; Terrakion can also check Talonflame andwhile Breloom can also check bulky Water-types. If Greninja is running Blizzard, Mega Abomasnow is a great partner because it checks bulky Grass-types that, which Greninja has trouble breaking through and because Greninja works well as a Blizzard spammer in hail. Mega Kangaskhan is a fantastic partner, as it provides a lot of offensive pressure in conjunction with Greninja. Greninja appreciates the Fake Out support that Mega Kangaskhan offers, as the chip damage is handy and the move can also protect Greninja from an attack while it does more damage. Greninja's ability to hit Pokemon that can wall Mega Kangaskhan, most notably Aegislash, benefits it greatly. Greninja can also be used to force opportunities to allow Mega Kangaskhan to set up with Power-Up Punch by sniping certain Pokemon.
Other Options
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Greninja has a myriad of moves that can be used based on the Pokemon that you need to hit on your team. Hidden Power Grass is an option to hit Politoed and Swampert and is generally better than Grass Knot, as it deals more damage to Rotom-W, while Hidden Power Fire hits Pokemon such as Scizor and Ferrothorn, which are 4x weak to Fire-type attacks. Blizzard is a stronger Ice-type attack and can be used to make Greninja a non-Trick Room hail attacker. Extrasensory hits Mega Venusaur, which is a common switch-in to Greninja, super effectively. Greninja can also hasuse some physical moves; if it Greninja is running any of them, change its nature should be changed to to Naive and move the 4 Special Defense EVs should be moved to Attack. Rock Slide lets Greninja OHKO standard Mega Charizard Y , while Low Kick can be used to hit Kyurem-B and Tyranitar harder. Gunk Shot can be used to hit Fairy-types such as Sylveon and Togekiss harder. Mat Block is NOTnot a viable option on Greninja, as it is vextremely predictable and useless outside ofafter turn 1. Greninja also already has major four-moveslot syndrome already.
Checks & Counters
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**Type Advantage**: Keep in mind that Greninja's checks and counters vary with what moves it uses. The safest picks for checks are faster Pokemon such as Choice Scarf Genesect, Choice Scarf Landorus-T, and Shaymin-S, as they outrun Greninja and can OHKO it if it didhas not changed types yet. Conkeldurr can tank any attack except the rare Extrasensory and deal massive damage with Mach Punch if Greninja still has a type weak to Fighting. Breloom can do the same with a stronger Mach Punch, but it cannot switch into Ice Beam. The standard Greninja set is easily walled by Pokemon such as Keldeo and Azumarill, which can force it out with Secret Sword and Play Rough, respectively. Those two moves are also super effective against Greninja if it did not change its typing yet. Generally, Pokemon that don't care aboutunaffected by Hydro Pump, Ice Beam, and Dark Pulse are good picks for defensive switch-ins.
**Speed Control**: Greninja depends greatly on its high Speed. Once Greninja's Speed is taken awaymade less, it's a sitting duck because of it's so frailubpar bulk. Trick Room beats Greninja pretty hard becausequite easily, as it only 2HKOes Aromatisse with Hydro Pump and 3HKOes Cresselia with Dark Pulse, both of which are common Trick Room user. Thundurus is another major problem, as its priority Thunder Wave can shut down Greninja's Speed.
**Speed**: Common priority moves, such as Mach Punch and Talonflame's Brave Bird, threaten Greninja due to its frailty, especially if it has not yet switched types. It is also greatly threatened by faster threats, such as Shaymin-S, Mega Manectric, and Deoxys-A.