Physical
Balanced
70Speed · Below Avg

Is Castform Good in FireRed & LeafGreen Playthrough?

Normal with AbilityForecast changing type based on weather. Trade-only. The concept is unique but the base stats are too low. Rain, sun, and hail all change Castform's type, but the body can't capitalize on any of them.

StrongGoodEvenToughBadGGGGGEGGGEEEEBrockGym 1MistyGym 2SurgeGym 3ErikaGym 4KogaGym 5SabrinaGym 6BlaineGym 7GiovanniGym 8CastformTradeLoreleiE4BrunoE4AgathaE4LanceE4TerryChamp*
Brock
Gym 1
Good

Castform has the type edge here and should clean up Brock's team.

Easy KO
Geodude
Lv 12
RockGround
Rock Head
TackleDefense Curl
You Win
Onix
Lv 14
RockGround
Rock Head
TackleBindRock Tomb
Misty
Gym 2
Good

Castform has the type edge here and should clean up Misty's team.

You Win
Staryu
Lv 18
Water
Illuminate
TackleHardenRecoverWater Pulse
Even
Starmie
Lv 21
WaterPsychic
Illuminate
SwiftRecoverRapid SpinWater Pulse
Lt. Surge
Gym 3
Good

Castform has the type edge here and should clean up Lt. Surge's team.

You Win
Voltorb
Lv 21
Electric
Soundproof
Sonic BoomTackleScreechShock Wave
You Win
Pikachu
Lv 18
Electric
Static
Quick AttackThunder WaveDouble TeamShock Wave
Even
Raichu
Lv 24
Electric
Static
Quick AttackThunder WaveDouble TeamShock Wave
Erika
Gym 4
Good

Castform has the type edge here and should clean up Erika's team.

You Win
Victreebel
Lv 29
GrassPoison
Chlorophyll
Stun SporeAcidPoison PowderGiga Drain
Easy KO
Tangela
Lv 24
Grass
Chlorophyll
Poison PowderConstrictIngrainGiga Drain
You Win
Vileplume
Lv 29
GrassPoison
Chlorophyll
Sleep PowderAcidStun SporeGiga Drain
Koga
Gym 5
Good

Castform has the type edge here and should clean up Koga's team.

You Win
Koffing
Lv 37
Poison
Levitate
Self DestructSludgeSmokescreenToxic
You Win
Muk
Lv 39
Poison
Stench
MinimizeSludgeAcid ArmorToxic
You Win
Koffing
Lv 37
Poison
Levitate
Self DestructSludgeSmokescreenToxic
You Win
Weezing
Lv 43
Poison
Levitate
TackleSludgeSmokescreenToxic
Sabrina
Gym 6
Even

Castform trades roughly evenly with Sabrina's team.

Even
Kadabra
Lv 38
Psychic
Synchronize
PsybeamReflectFuture SightCalm Mind
You Win
Mr Mime
Lv 37
PsychicFairy
Soundproof
BarrierPsybeamBaton PassCalm Mind
You Win
Venomoth
Lv 38
BugPoison
Shield Dust
PsybeamGustLeech LifeSupersonic
Even
Alakazam
Lv 43
Psychic
Synchronize
PsychicRecoverFuture SightCalm Mind
Blaine
Gym 7
Good

Castform has the type edge here and should clean up Blaine's team.

You Win
Growlithe
Lv 42
Fire
Intimidate
BiteRoarTake DownFire Blast
You Win
Ponyta
Lv 40
Fire
Run Away
StompBounceFire SpinFire Blast
You Win
Rapidash
Lv 42
Fire
Run Away
StompBounceFire SpinFire Blast
Even
Arcanine
Lv 47
Fire
Intimidate
BiteRoarTake DownFire Blast
Giovanni
Gym 8
Good

Castform has the type edge here and should clean up Giovanni's team.

You Win
Rhyhorn
Lv 45
GroundRock
Lightning Rod
Take DownRock BlastScary FaceEarthquake
You Win
Dugtrio
Lv 42
Ground
Sand Veil
SlashSand TombMud SlapEarthquake
You Win
Nidoqueen
Lv 44
PoisonGround
Poison Point
Body SlamDouble KickPoison StingEarthquake
You Win
Nidoking
Lv 45
PoisonGround
Poison Point
ThrashDouble KickPoison StingEarthquake
You Win
Rhyhorn
Lv 50
GroundRock
Lightning Rod
Take DownRock BlastScary FaceEarthquake
Lorelei
Elite Four
Good

Castform has the type edge here and should clean up Lorelei's team.

You Win
Dewgong
Lv 52
WaterIce
Thick Fat
Ice BeamSurfHailSafeguard
You Win
Cloyster
Lv 51
WaterIce
Shell Armor
SpikesProtectHailDive
You Win
Slowbro
Lv 52
WaterPsychic
Oblivious
Ice BeamSurfAmnesiaYawn
Even
Jynx
Lv 54
IcePsychic
Oblivious
Ice PunchDouble SlapLovely KissAttract
Even
Lapras
Lv 54
WaterIce
Water AbsorbImmune to Water attacks
Confuse RayIce BeamSurfBody Slam
Bruno
Elite Four
Even

Castform trades roughly evenly with Bruno's team.

You Win
Onix
Lv 51
RockGround
Rock Head
EarthquakeRock TombIron TailRoar
Even
Hitmonchan
Lv 53
Fighting
Keen Eye
Sky UppercutMach PunchRock TombCounter
Even
Hitmonlee
Lv 53
Fighting
Limber
Mega KickForesightBrick BreakFacade
You Win
Onix
Lv 54
RockGround
Rock Head
Double EdgeEarthquakeIron TailSand Tomb
Even
Machamp
Lv 56
Fighting
Guts
Cross ChopBulk UpScary FaceRock Tomb
Agatha
Elite Four
Even

Castform trades roughly evenly with Agatha's team.

Even
Gengar
Lv 54
GhostPoison
Levitate
Shadow PunchConfuse RayToxicDouble Team
You Win
Golbat
Lv 54
PoisonFlying
Inner Focus
Confuse RayPoison FangAir CutterBite
Risky
Haunter
Lv 53
GhostPoison
Levitate
HypnosisDream EaterCurseMean Look
You Win
Arbok
Lv 56
Poison
Intimidate
Sludge BombScreechIron TailBite
Risky
Gengar
Lv 58
GhostPoison
Levitate
Shadow BallSludge BombHypnosisNightmare
Lance
Elite Four
Even

Castform trades roughly evenly with Lance's team.

You Win
Gyarados
Lv 56
WaterFlying
Intimidate
Hyper BeamDragon RageTwisterBite
You Win
Dragonair
Lv 54
Dragon
Shed Skin
Hyper BeamSafeguardDragon RageOutrage
You Win
Dragonair
Lv 54
Dragon
Shed Skin
Hyper BeamSafeguardThunder WaveOutrage
Risky
Aerodactyl
Lv 58
RockFlying
Rock Head
Hyper BeamAncient PowerWing AttackScary Face
You Win
Dragonite
Lv 60
DragonFlying
Inner Focus
Hyper BeamSafeguardOutrageWing Attack
Terry
Champion
Even

Castform trades roughly evenly with Terry's team.

Even
Heracross
Lv 72
BugFighting
Swarm
MegahornEarthquakeCounterRock Tomb
Even
Alakazam
Lv 73
Psychic
Synchronize
PsychicShadow BallCalm MindReflect
Risky
Tyranitar
Lv 72
RockDark
Sand Stream
CrunchEarthquakeThunderboltAerial Ace
Even
Arcanine
Lv 73
Fire
Intimidate
Extreme SpeedOverheatAerial AceIron Tail
Even
Exeggutor
Lv 73
GrassPsychic
Chlorophyll
Giga DrainPsychicSleep PowderLight Screen
Even
Blastoise
Lv 75
Water
Torrent
Hydro PumpIce BeamEarthquakeRain Dance
Trade
Transfer-only
Type
Normal
Tier
E

Castform cannot be caught in this game. It must be traded in from a compatible game where it appears in the wild. On GBA, cross-region trading unlocks post-game after Celio's Sevii Islands Ruby & Sapphire quest. The Switch re-release supports only one-way transfers out to Pokemon HOME.

View Castform locations

Recommended Moves
  • After Erika
    • TM43NormalSecret Power105100%20
    • TM22GrassSolar Beam120100%10
    • TM35FireFlamethrower90100%15
    • TM13IceIce Beam90100%10
  • After Blaine
    • TM38FireFire Blast11085%5
  • After Giovanni
    • TUTORNormalDouble-Edge180100%15
  • Post-Game
    • TUTORNormalBody Slam128100%15
    • TM42NormalFacade105100%20

How to Get Castform in FireRed & LeafGreen

Weather Institute in Hoenn hands out Castform as a gift. Complete the Team Aqua or Magma event there and the NPC gives you one. FRLG trades it in from a post-event Hoenn save.

Castform cannot be caught in the wild in FireRed & LeafGreen, but you can still get it via these paths:

Pokemon HOME · Switch Rerelease

Playing the Switch version of FireRed & LeafGreen? Pokemon HOME compatibility is post-launch but deposit-only by design (FRLG → HOME). Inbound HOME transfer of Castform into FRLG is not possible — an original GBA cartridge with a Link Cable is the only inbound route.

Receive as a gift and trade from these games:

Then trade to FireRed & LeafGreen.

Castform Weakness

Castform's Normal typing leaves it vulnerable to Fighting. It shrugs off Ghost-type attacks completely. Only 1 weakness makes it relatively easy to build around defensively.

Castform Weakness and Resistance Chart
DamageTypes
2x (Weak)Fighting
0x (Immune)Ghost
Gen III Type Chart
  • Dark and Steel types added — Fairy does not exist yet
  • Moves are Physical or Special based on type, not per move

What is Castform Weak Against

Good
1Weak
0Resist
1Immune
Score+1
4xCritical
None
2xWeak
½xResist
None
¼xResist
None
0xImmune

What is Castform Strong Against

0Strong
2Resisted
1Immune
Score-3
2xStrong
None
½xResisted
0xImmune

Best Pokemon Against Castform

Castform Evolutions

No evolution chain to worry about here. Castform is a standalone Pokemon with a decent partner pool for breeding through two egg groups. Eggs come out average hatch time. View every chain in the Evolution Chart.

How to Evolve

No Evolution
Castform
#351Castform
Does not evolve

Breeding

Very Easy

Breed Castform easily with 22 breeding partners from the Indeterminate and Fairy egg groups. Pass egg moves like Future Sight, Psych Up to offspring.

Egg Groups
Gender
50.0%50.0%
Hatch Time
25 cycles·6,425 steps
Moderate~6 min with Flame Body
Egg Moves
2moves
Breed With (best first)
raichuazumarilltogeticpikachugardevoirglaliejumpluffbreloommarillgranbulldelcattyroselia

FRLG Castform Best Moveset

AbilityForecast changes Castform's type and form with the weather: Water in rain, Fire in sun, Ice in hail. MoveWeather Ball doubles in power and matches the new type. The moveset concept is strong, but 70 base stats everywhere prevent competitive viability regardless of weather form.

Best Build

Experimental
Special Attacker
Ability
Forecast
Item
LeftoversSUSTAIN
Best Nature for Castform
Timid+SPE

Castform best EVs are Sp. Atk and Speed

EVs

Special Attacker Moveset

  • Weather BallSTAB
  • Rain Dance
  • ThunderCoverage
  • Thunder Wave

Recommended Teammates

Moves List

Without TMs, Castform's movepool is bare bones. With them, you get coverage across 8 types on top of Double-Edge and Body Slam for STAB. The natural kit handles basics, but TMs are doing the real work.

Level-Up Moves

Lv 1
Tackle
D5210035Normal
Lv 10
Ember
4010025Fire
Lv 10
Powder Snow
4010025Ice
Lv 10
Water Gun
D4010025Water
Lv 20
Hail
10Ice
Lv 20
Rain Dance
B5Water
Lv 20
Sunny Day
A5Fire
Lv 30
Weather Ball
B7510010Normal

TM Moves

TM
TM45
Attract
10015Normal
TM14
Blizzard
D120705Ice
TM32
Double Team
15Normal
TM42
Facade
C10510020Normal
TM38
Fire Blast
C120855Fire
TM35
Flamethrower
C9510015Fire
HM05
Flash
7020Normal
TM21
Frustration
D10020Normal
TM07
Hail
10Ice
TM10
Hidden Power
9010015Normal
TM13
Ice Beam
A9510010Ice
TM17
Protect+4
C10Normal
TM18
Rain Dance
B5Water
TM44
Rest
C10Psychic
TM27
Return
D10020Normal
TM37
Sandstorm
D10Rock
TM43
Secret Power
10510020Normal
TM30
Shadow Ball
D8010015Ghost
TM34
Shock Wave
D6020Electric
TM22
Solar Beam
C12010010Grass
TM11
Sunny Day
A5Fire
TM46
Thief
D6010025Dark
TM25
Thunder
B1207010Electric
TM24
Thunderbolt
C9510015Electric
TM06
Toxic
C8510Poison
TM03
Water Pulse
D6010020Water

Egg Moves

Egg
Egg
Future Sight
12010010Psychic
Egg
Psych Up
D10Normal

Tutor Moves

Tut
Tutor
Body Slam
C12710015Normal
Tutor
Double-Edge
B18010015Normal
Tutor
Mimic
D10Normal
Tutor
Substitute
C10Normal
Tutor
Thunder Wave
A10020Electric

Base Stats

Base Stats
Above
HP70
C
Attack70
C
Defense70
C
Sp. Atk70
C
Sp. Def70
C
Speed70
C
Total420
Details
Catch Rate
Challenging45 / 255
Growth Rate
Medium Fast1M XP
Height0.3 m
Weight0.8 kg
Base XP147
Abilities
Forecast
Changes castform's type and form to match the weather.
EV Yield
HP+1AtkDefSpASpDSpe
HP training source
Pokedex Entry

It has the ability to change its form into the sun, the rain, or a snow cloud, depending on the weather.

Pokemon FireRed / Pokemon LeafGreen

Castform FireRed & LeafGreen Guide

  • Castform isn't catchable in FireRed & LeafGreen. Obtain it as a gift in Ruby, Sapphire, or Emerald, then trade it to FireRed & LeafGreen.

Game Availability

Castform first appeared in Ruby & Sapphire and has been available in 13 games across 8 generations. Obtainable through wild encounters in most titles where it appears.

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