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#139: Ratsy Ratsy
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Nucleon
Atomic Pokémon
#138
138Popkas
Type
Nuclear
Unknown
Unknown
Ability
Atomizate
Hidden Ability
Geiger Sense
Gender ratio
87.5% male, 12.5% female
Catch rate
45 (5.9%)
Breeding
Egg group
Field
Hatch time
9180 steps*
Height
0.7 m 2'3.6"
m
Weight
21.5 kg 47.4 lbs
{{{weight2-kg}}} kg
Base experience yield
184
Leveling rate
Medium Fast
EV yield
Total: 2
0
HP
0
Atk
0
Def
1
Sp.Atk
1
Sp.Def
0
Speed
0
HP
0
Atk
0
Def
0
Sp.Atk
0
Sp.Def
0
Speed
Body style
Quadruped
Pokédex color
Black
Base friendship
35


Nucleon (NUKE-lee-on) is a Nuclear-type Pokémon.

It evolves from Eevee starting at level 20 while a Nuclear-type Pokémon is in your party.

Pokédex entry[]

Pokédex entry
One of the only non-feral Nuclear Pokémon. It's theorized that its bond with its trainer when it was an Eevee allows it to stay in control.

Biology[]

Physiology[]

Nucleon is a quadrupedal digitigrade Pokémon that has a sleek gray body with four slender legs, each with a green three-toed paw. It has three light-blue eyes. Its muzzle and underbelly are white, and its tail and ears are slender, green, glowing triangles detached from its body. It has an ionizing radiation symbol on its chest, with three detached, glowing, green triangles, somewhat giving it the appearance of a bow-tie.

Special abilities[]

The symbol on its chest can fire out gamma rays, which it defeats its opponents with.

Behavior[]

Nucleon remembers the bond it had with its trainer, and thus, does not go feral upon evolution from an Eevee.

Habitat[]

They are usually only found in urban areas under the care of trainers, though they can be occasionally seen roaming near irradiated landscapes.

Game Locations[]

Availability
None Evolve Eevee
Common
Uncommon
Fossil
Rare
Poké Radar
Buy
One

Held Items[]

Held item(s)
None This Pokémon cannot be found holding an item.
Common
Uncommon
Rare
Always

Base Stats[]

Stat Range
At Lv. 50 At Lv. 100
HP: 70
130 - 177 250 - 344
Attack: 55
54 - 117 103 - 229
Defense: 85
81 - 150 157 - 295
Sp.Atk: 115
108 - 183 211 - 361
Sp.Def: 115
108 - 183 211 - 361
Speed: 90
85 - 156 166 - 306
Total: 530   Other Pokémon with this total  
  • Minimum stats are calculated with 0 EVs, IVs of 0, and a hindering nature, if applicable.
  • Maximum stats are calculated with 252 EVs, IVs of 31, and a helpful nature, if applicable.


Type Effectiveness[]

Under normal battle conditions, this Pokémon is:
Immune to:
Normal
Fighting
Flying
Poison
Ground
Rock
Bug
Ghost
Steel
Fire
Water
Grass
Electric
Psychic
Ice
Dragon
Dark
Fairy
Nuclear ½×
None
Doubly resistant to:
Normal
Fighting
Flying
Poison
Ground
Rock
Bug
Ghost
Steel
Fire
Water
Grass
Electric
Psychic
Ice
Dragon
Dark
Fairy
Nuclear ½×
None
Resistant to:
Normal
Fighting
Flying
Poison
Ground
Rock
Bug
Ghost
Steel
Fire
Water
Grass
Electric
Psychic
Ice
Dragon
Dark
Fairy
Nuclear ½×
None
Damaged normally by:
Normal
Fighting
Flying
Poison
Ground
Rock
Bug
Ghost
Steel
Fire
Water
Grass
Electric
Psychic
Ice
Dragon
Dark
Fairy
Nuclear ½×
None
Weak to:
Normal
Fighting
Flying
Poison
Ground
Rock
Bug
Ghost
Steel
Fire
Water
Grass
Electric
Psychic
Ice
Dragon
Dark
Fairy
Nuclear ½×
None
Doubly weak to:
Normal
Fighting
Flying
Poison
Ground
Rock
Bug
Ghost
Steel
Fire
Water
Grass
Electric
Psychic
Ice
Dragon
Dark
Fairy
Nuclear ½×
None

Moves[]

By Level Up[]

  • All damaging Normal-type moves become Nuclear-type if Nucleon has Atomizate.
By Leveling Up
 Level   Move   Type   Cat.   Pwr.   Acc.   PP 
1 Helping Hand Normal Status —% 20
1 Tackle Normal Physical 50 100% 35
1 Tail Whip Normal Status 100% 30
5 Sand Attack Ground Status 100% 15
9 Gamma Ray Nuclear Special 40 100% 30
12 Quick Attack Normal Physical 40 100% 30
17 Swift Normal Special 60 —% 20
21 Headbutt Normal Physical 70 100% 15
25 Half-Life Nuclear Special Varies 90% 10
29 Flash Normal Status 100% 20
33 Mirror Coat Psychic Special 100% 20
37 Conversion 2 Normal Status —% 20
41 Last Resort Normal Physical 140 100% 5
45 Hyper Voice Normal Special 90 100% 10
  • Bold moves get STAB when used by Nucleon
  • Italic moves get STAB only when used by an evolution of Nucleon
  • Underlined moves are unavailable to a prior evolution(s) and/or will
    be completely unavailable upon evolving.

Via A Prior Evolution[]

Via A Prior Evolution
 Stage   Move   Type   Cat.   Pwr.   Acc.   PP 
Eevee Growl Normal Status 100% 40
Eevee Baby-Doll Eyes Fairy Status 100% 30
Eevee Bite Dark Physical 60 100% 25
Eevee Refresh Normal Status —% 20
Eevee Take Down Normal Physical 90 85% 20
Eevee Charm Fairy Status 100% 20
Eevee Baton Pass Normal Status —% 40
Eevee Double-Edge Normal Physical 120 100% 15
Eevee Trump Card Normal Special —% 5
Eevee Dig Ground Physical 80 100% 10
Eevee Shadow Ball Ghost Special 80 100% 15
Eevee Secret Power Normal Physical 70 100% 20
Eevee Echoed Voice Normal Special 40 100% 15
Eevee Retaliate Normal Physical 70 100% 5
Eevee Snore Normal Special 50 100% 15
  • Bold moves get STAB when used by Nucleon
  • Italic moves get STAB only when used by an evolution of Nucleon

By TM/HM[]

By TM/HM
 TM   Move   Type   Cat.   Pwr.   Acc.   PP 
TMPsychic TM04 Calm Mind Psychic Status 0000 00—}}—% 20
TMNormal TM05 Roar Normal Status 0000 00—}}—% 20
TMPoison TM06 Toxic Poison Status 0000 090}}90% 10
TMNormal TM10 Hidden Power Normal Special 06060 100}}100% 15
TMFire TM11 Sunny Day Fire Status 0000 00—}}—% 5
TMNormal TM15 Hyper Beam Normal Special 150150 090}}90% 5
TMPsychic TM16 Light Screen Psychic Status 0000 00—}}—% 30
TMNormal TM17 Protect Normal Status 0000 00—}}—% 10
TMWater TM18 Rain Dance Water Status 0000 00—}}—% 5
TMNormal TM20 Safeguard Normal Status 0000 00—}}—% 25
TMNormal TM21 Frustration Normal Physical 0000Varies 100}}100% 20
TMNormal TM27 Return Normal Physical 0000Varies 100}}100% 20
TMNormal TM32 Double Team Normal Status 0000 00—}}—% 15
TMPsychic TM33 Reflect Psychic Status 0000 00—}}—% 20
TMNormal TM42 Facade Normal Physical 07070 100}}100% 20
TMPsychic TM44 Rest Psychic Status 0000 00—}}—% 10
TMNormal TM45 Attract Normal Status 0000 100}}100% 15
TMNormal TM64 Explosion Normal Physical 250250 100}}100% 5
TMNormal TM68 Giga Impact Normal Physical 150150 090}}90% 5
TMNormal TM70 Flash Normal Status 0000 100}}100% 20
TMNormal TM82 Sleep Talk Normal Status 0000 00—}}—% 10
TMNormal TM87 Swagger Normal Status 0000 090}}90% 15
TMNormal TM90 Substitute Normal Status 0000 00—}}—% 10
TMNormal TM98 Last Resort Normal Physical 140140 100}}100% 5
  • Bold moves get STAB when used by Nucleon
  • Italic moves get STAB only when used by an evolution of Nucleon
  • Underlined moves are unavailable to a prior evolution(s) and/or will
    be completely unavailable upon evolving.

By Tutor[]

By Move Tutor
 Move   Type   Cat.   Pwr.   Acc.   PP   Cost 
Covet Normal Physical 60 100% 25 Red Shard4
Helping Hand Normal Status —% 20 Yellow Shard4 /Pokémon_Dollar0
Hyper Voice Normal Special 90 100% 10 Blue Shard4
  • Bold movea get STAB when used by Nucleon
  • Italic movea get STAB only when used by an evolution of Nucleon
  • Underlined moves are unavailable to a prior evolution(s) and/or will
    be completely unavailable upon evolving.

By Breeding[]

By Breeding
 Father   Move   Type   Cat.   Pwr.   Acc.   PP 
DunsparceFelengEkansJerbolta
CostrawFlagerChimicalMinicorn
Captivate Normal Status 100% 20
OrchynxChyinmunkFelengOwten
JerboltaEeveePufluffMinicorn
Charm Fairy Status 100% 20
FelengMankeyEevee Covet Normal Physical 60 100% 25
Chimical Curse Ghost Status —% 10
LunapupHerolune Detect Fighting Status —% 5
GrozardDunsparceJerboltaLunapup
Alpico
Endure Normal Status —% 10
N/A Fake Tears Dark Status 100% 20
DunsparcePufluff Flail Normal Physical 100% 15
DunsparceEkansJerboltaTikiki Natural Gift Normal Physical 100% 15
Ratsy Stored Power Psychic Special 20 100% 10
Ratsy Synchronoise Psychic Special 120 100% 10
Ratsy Tickle Normal Status 100% 20
Ratsy Wish Normal Status —% 10
DunsparceFeleng Yawn Normal Status —% 10
  • Moves marked with an asterisk (*) must be chain bred to Nucleon
  • Bold moves get STAB when used by Nucleon
  • Italic moves get STAB only when used by an evolution of Nucleon
  • (Breeding moves cannot be re-learned by the Move Expert upon evolving)

Evolution[]

129
Unevolved
Eevee
 Normal 
Rare Candy + Nuclear (type)
Level 20 or over with
a Nuclear-type
party member

138
First evolution
Nucleon
 Nuclear 


Betanotice Gameplay Notice

Eevee's evolutions have different priority levels. One must remove items required to evolve an Eevee into Leafeon, Glaceon, or Sylveon from an Eevee in order for it to evolve into a Nucleon.

Sprites[]

Front Back
GenderM 138 138b
Front shiny Back shiny
GenderM 138s 138sb
Egg sprite

Trivia[]

  • Prior to 1.2.3, Nucleon used Glaceon's cry.
  • Nucleon does not share the same stat spread or base stat total with the other Eeveelutions. It has a base stat total of 530 (as opposed to 525), and its stat spread is 70/55/85/115/115/90 (as opposed to some combination of 60/65/65/95/110/130).
  • Nucleon has the highest base Special Defense of all naturally Nuclear-type Pokémon.
  • Nucleon is the first Nuclear Pokémon listed in the PokéDex, as Nuclear forms are not listed.
    • Ironically, it is impossible for Nucleon to be the first Nuclear Pokémon a player has interacted with besides trading - Theo only acquires one after Vinoville Town, and the player cannot have a Nucleon without first catching another Nuclear Pokémon themselves.
    • Nucleon is also the only Nuclear-type capable of having a Hidden Ability, as the other pure Nuclear-types lack one, and the corrupted Nuclear-types cannot have their Hidden Ability.

Design Origin[]

According to Motofumi Fujiwara, a key person at Game Freak, Eevee was based on a vague childhood experience he had, He described seeing an "indefinable creature" and that Eevee was based on a drawing of all that he could remember of it.

Each one of Eevee's evolutions are based on the same design but are made to resemble their type. Nucleon has a third eye on its forehead, a characteristic mutants are often depicted with in fiction.

Name Origin[]

Nucleon comes from nuclear, nucleus (the center of an atom), or nucleon (one of the particles found in the nucleus) as well as Eon (an immeasurably long period of time, presumably in reference to the concept of evolution). Eon is also a suffix shared by all Eeveelutions and was Eevee's prototype English name.

In Other Languages[]

Language Title Meaning
Spanish Language Flag Spanish
Portugese Language Flag Brazilian Portugese
Chinese Language Flag Simplified Chinese
German Language Flag German
French Language Flag French
Mouse over words to see their English translation.


Gallery[]

Eevee
Eevee
Vaporeon
Vaporeon
Jolteon
Jolteon
Flareon
Flareon
Espeon
Espeon
Umbreon
Umbreon
Leafeon
Leafeon
Glaceon
Glaceon
Sylveon
Sylveon
Nucleon
Nucleon
Sylveon #137: Sylveon
Pokémon
#139: Ratsy Ratsy
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