Serperior

Overgrow
Boosts power of Grass-type moves by 50% when at 1/3 HP or less.
Contrary
The wielder's stat changes are reversed.
Type Tier
Grass NU
Level 100 Statistics (see level 5, 50, 100)
Min- Min Max Max+
HP
75
- 291 354 -
Atk
75
167 186 249 273
Def
95
203 226 289 317
SpA
75
167 186 249 273
SpD
95
203 226 289 317
Spe
113
235 262 325 357

Overview

At first, Serperior appears to have little to differentiate itself from the hordes of Grass-types vying for a spot on your team; poor stats, except for its strange base 113 Speed, and a shallow movepool shared by similar Pokemon doesn't help Serperior's case. Thankfully, Serperior has some unique options, and just enough raw power and bulk to run a multitude of effective sets. Serperior's base 75 Attack and Special Attack stats mean that Serperior hits like a wet towel without any boosts; however, Serperior has access to three dangerous boosting moves that can quickly transform it into an offensive threat that belies its stats. Serperior's defensive stats are also mediocre at best, but once again, Serperior can remedy this deficiency with boosting moves such as Calm Mind and Coil, which boost Special Defense and Defense, respectively. Serperior's precise movepool also gives it access to a reliable paralysis inducing move in Glare, a phazing move in Dragon Tail, and dual screens. This makes Serperior a valuable team supporter. Unfortunately, Serperior's offensive movepool is fairly barren, meaning its coverage is lacking when attempting to sweep. While Serperior might not be the best at anything, its unpredictability means it can fit onto almost any team.

Name Item Nature

Coil

Leftovers / Life Orb Jolly
Moveset EVs
~ Coil
~ Leaf Blade
~ Aqua Tail
~ Return / Substitute
4 HP / 252 Atk / 252 Spe

Serperior is one of the few Pokemon gifted with the boosting move Coil. With a viable move to boost its Attack, and a physical movepool that covers most of the metagame, Serperior is one of the few Grass-types that can run a decent physical set in RU. When Serperior coils its serpentine body, it will be able to easily boost up in the face of physical attackers, such as Kabutops, before unleashing its powerful attacks. The Defense boost also means that Serperior is much harder to revenge kill with priority attacks such as ExtremeSpeed, Mach Punch, and Sucker Punch. Coil also boosts Serperior's accuracy, which elevates Aqua Tail and Dragon Tail's accuracy to 100% after a boost, as well as dealing with rare accuracy-lowering moves. Leaf Blade is a poorly distributed move that has excellent Base Power and perfect accuracy; it also has twice the chance to score a critical hit relative to a normal move, which can be useful in some situations. Aqua Tail is a coverage move that many other Grass-types lack. It provides superb coverage, destroying Fire- and Steel-types while having excellent neutral coverage with Leaf Blade on most of the metagame. Return rounds out the set, hitting the Grass-types that resist Aqua tail and Leaf Blade. However, Substitute can be used instead to shield Serperior from status. Serperior's Substitute become increasingly difficult for physical attackers to break as it accumulates more Coil boosts.

Team Options & Additional Comments >>>
Name Item Nature

Substitute + Calm Mind

Leftovers / Life Orb Timid
Moveset EVs
~ Substitute
~ Calm Mind
~ Giga Drain
~ Hidden Power Rock / Hidden Power Fire / Dragon Pulse
4 HP / 252 SpA / 252 Spe

At first glance, this set appears to be horribly outclassed by Lilligant, who boasts a better boosting move in Quiver Dance, as well as Sleep Powder to incapacitate its counters. However, Serperior has far superior bulk, better base Speed, access to Dragon Pulse, and an extremely useful ability in Overgrow. Substitute and Calm Mind is a time-honored technique that allows Serperior to evade status and set up with ease against certain walls and weaker special attackers—which will struggle to break Serperior's Substitutes after a few boosts. Giga Drain is Serperior's main STAB attack; it replenishes health lost from Life Orb and Substitute, making Serperior harder to wear down. With room for only one coverage move, Serperior cannot hope to hit the entire metagame for neutral damage. However, Hidden Power Rock hits common switch-ins, such as Moltres, Braviary, and Typhlosion, hard. Hidden Power Fire, on the other hand, hits Bug- and Steel-types, such as Escavalier, Magneton, and Accelgor, which would wall Serperior otherwise. Lastly, Dragon Pulse has the best neutral coverage with Giga Drain, only missing out on Steel-type Pokemon. It also hits Dragon-types such as Altaria and Druddigon super effectively, both of whom would otherwise wall Serperior with ease—although Altaria is hit super effectively by Hidden Power Rock. The combination of Substitute and Overgrow is deadly, as Serperior can use its naturally high Speed to safely Substitute down to Overgrow range where it can then unleash a powerful boosted Giga Drain restoring its HP in the process.

Team Options & Additional Comments >>>
Name Item Nature

Parashuffler

Leftovers Bold
Moveset EVs
~ Glare
~ Dragon Tail
~ Giga Drain
~ Taunt
252 HP / 252 Def / 4 Spe

With both a reliable paralysis and a phazing move in its movepool, Serperior can play the role of a parashuffler very well. By continuously paralyzing members of your opponent's team, Serperior makes it easier for slow, yet powerful Pokemon on your team to sweep. Unlike most paralysis inducers, Serperior's paralysis move, Glare, is not blocked by Ground-types and Electric-type immunities; however, Glare does not affect Ghost-types. Dragon Tail, in conjunction with entry hazards, deals far more damage than directly attacking. The presence of entry hazards on the field also dissuades opponents from switching, meaning Serperior can paralyze more of their team. Keep in mind, however, that Dragon Tail is pitifully weak and cannot break most Substitutes. Giga Drain is Serperior's reliable STAB attack which it can use to threaten Rock-, Ground-, and Water-types, letting Serperior start a parashuffling cycle. It also gets an Overgrow boost, hitting fairly hard despite this set's lack of Special Attack investment. Lastly, Serperior has a fairly fast Taunt, another quality which separates it from other paralysis inducers. Taunt prevents Pokemon from setting up on Serperior, as well as blocking status inducing attempts, such as the deadly Toxic. Taunt also shuts down most walls that commonly switch into Serperior, as they fear paralysis less than their faster teammates. Taunt can also prevent the opponent from setting up a Substitute, allowing Serperior to phaze them freely.

Team Options & Additional Comments >>>
Name Item Nature

Dual Screens

Light Clay Timid
Moveset EVs
~ Light Screen
~ Reflect
~ Giga Drain
~ Taunt
252 HP / 4 SpA / 252 Spe

The strategy of hyper offense often relies on dual screens, letting frail but powerful sweepers set up on attacks they would not be able to stomach otherwise. Serperior is a prime candidate for setting up both Reflect and Light Screen because of its high Speed, unique typing for a dual screens user, and access to Taunt. Light Screen and Reflect are a given on this set. Together, they halve the incoming damage from opposing Pokemon, giving yours ample time to set up or attack. Giga Drain is Serperior's only attack, and although it doesn't hit very hard, it is useful in weakening Pokemon such as Slowking and Lanturn, as they wall certain sweepers. Serperior also benefits greatly from its typing; Grass typing separates it from other popular dual screen users that are mostly Psychic-type. Taunt is Serperior's trump card; it differentiates it from the many other dual screen users vying for a place on your team. With Taunt, Serperior can stop phazers, stop attempts to ruin sweepers with Thunder Wave and Will-O-Wisp, and prevent other disruptive support moves, such as Trick Room, weather, and entry hazards, from being set up.

Team Options & Additional Comments >>>

Other Options

Like most Grass-types, Serperior's movepool is small; however, that isn't to say Serperior doesn't have decent options. Swords Dance is another boosting move Serperior can use; it doubles Serperior's Attack stat, boosting Serperior's offensive presence twice as fast as Coil. Unfortunately, it makes Serperior play more like a weaker Sawsbuck. As Serperior has excellent bulk, it is better off with Coil most of the time. SubSeed is also popular, and Serperior can pull it off well thanks to its high Speed; however, it is largely outclassed by Whimsicott, which boasts priority on Substitute, Leech Seed, and any other support moves it might be running. Serperior can also run a support set with moves such as Aromatherapy, Glare, and Synthesis. Keep in mind, however, that Pokemon such as Tangrowth and Clefable are far bulkier than Serperior and have similar support options. An all-out special attacker with Leaf Storm, Dragon Pulse, and a Hidden Power of choice is viable, but Serperior just doesn't have enough power to make it a consistent option.

Checks and Counters

As Serperior is largely reliant on its STAB attacks, Pokemon with the ability Sap Sipper, such as Miltank and Bouffalant, are great counters. They take little from Serperior's coverage attacks and have little to fear from paralysis. In return, they can smack Serperior with powerful STAB Normal-type attacks. However, if Serperior has accumulated numerous Coil boosts, then even they will be unable to defeat it. Sawsbuck is also immune to Serperior's Grass-type attacks, and resists Aqua Tail to boot. However, its frailty and weakness to Hidden Power Fire hold it back as a check. Bulky Grass-types, such as Tangrowth and Roselia, have little to fear from physical sets; Tangrowth can put Serperior to sleep and hit it hard with a super effective Hidden Power. Roselia can hit Serperior super effectively with Sludge Bomb and can set up numerous entry hazards. Specially based Serperior is also walled comfortably by Roselia even if it runs Hidden Power Fire. As the specially based sets only have two attacking moves, Serperior can never have perfect coverage. If Hidden Power Rock or Dragon Pulse are the coverage move of choice, Steel-types, such as Magneton, Escavalier, and Klinklang, will wall Serperior. If Hidden Power Fire is used, Fire-types, such as Moltres and Entei, will be able to wall, and eventually beat, Serperior. Bug- and Flying-types, such as Pinsir and Braviary, can all hit Serperior super effectively with their STABs and can outspeed Serperior with a Choice Scarf. However, they have to be wary of Hidden Power Rock when switching in.

Unreleased

As soon as Contrary comes out, Serperior will likely move up a few tiers and this analysis will no longer exist.