Forecast changes Castform's type to match the active weather at C-Tier in Platinum. A gimmick that rarely helps, and base stats are too low to capitalize on any form.
Ability 1ForecastAbility 1Changes castform's type and form to match the weather.
420HP70Attack70Defense70Speed70Sp.Def70Sp.Atk70
Weak to
Special
Balanced
70Speed · Below Avg

Is Castform Good in Platinum Playthrough?

Trophy Garden encounter. Normal-type with AbilityForecast changing type and form with weather. Rain makes it Water, sun makes it Fire, hail makes it Ice. Fun gimmick but the stats are too low for serious use.

StrongGoodEvenToughBadSTTEGEGEEGEEGGGERoarkGym 1GardeniaGym 2FantinaGym 3MayleneGym 4Crasher WakeGym 5ByronGym 6CandiceGym 7VolknerGym 8CastformCatchableAaronE4BerthaE4FlintE4LucianE4JupiterBossMarsBossSaturnBossCynthiaChamp*
Roark
Gym 1
Strong

Castform resists most of Roark's coverage and hits back hard.

Easy KO
Geodude
Lv 12
RockGround
Rock Head
Stealth RockRock Throw
Easy KO
Onix
Lv 12
RockGround
Rock Head
Stealth RockRock ThrowScreech
You Win
Cranidos
Lv 14
Rock
Mold Breaker
HeadbuttPursuitLeer
Gardenia
Gym 2
Tough

Gardenia's typing presses Castform's defenses.

Even
Turtwig
Lv 20
Grass
Overgrow
Grass KnotRazor LeafSunny DayReflect
Risky
Cherrim
Lv 20
Grass
Flower Gift
Grass KnotLeech SeedMagical LeafSafeguard
Avoid
Roserade
Lv 22
GrassPoison
Natural Cure
Grass KnotMagical LeafPoison StingStun Spore
Fantina
Gym 3
Tough

Fantina's typing presses Castform's defenses.

Even
Duskull
Lv 24
Ghost
Levitate
Will O WispPursuitShadow SneakFuture Sight
Risky
Haunter
Lv 24
GhostPoison
Levitate
Shadow ClawSucker PunchHypnosisConfuse Ray
Risky
Mismagius
Lv 26
Ghost
Levitate
Shadow BallPsybeamMagical LeafConfuse Ray
Maylene
Gym 4
Even

Castform trades roughly evenly with Maylene's team.

Even
Meditite
Lv 28
FightingPsychic
Pure Power
Drain PunchConfusionRock TombFake Out
Even
Machoke
Lv 29
Fighting
Guts
Karate ChopRock TombStrengthFocus Energy
Risky
Lucario
Lv 32
FightingSteel
Steadfast
Drain PunchForce PalmMetal ClawBone Rush
Crasher Wake
Gym 5
Good

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

You Win
Gyarados
Lv 33
WaterFlying
Intimidate
WaterfallBrineBiteTwister
Easy KO
Quagsire
Lv 34
WaterGround
Damp
Mud ShotRock TombWater PulseYawn
Even
Floatzel
Lv 37
Water
Swift Swim
BrineIce FangCrunchAqua Jet
Byron
Gym 6
Even

Castform trades roughly evenly with Byron's team.

Even
Magneton
Lv 37
ElectricSteel
Magnet Pull
Flash CannonThunderboltTri AttackMetal Sound
Even
Steelix
Lv 38
SteelGround
Rock Head
Flash CannonIce FangEarthquakeSandstorm
Even
Bastiodon
Lv 41
RockSteel
Sturdy
Metal BurstStone EdgeIron DefenseTaunt
Candice
Gym 7
Good

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

You Win
Sneasel
Lv 40
DarkIce
Inner Focus
SlashAerial AceFeint AttackIce Shard
You Win
Piloswine
Lv 40
IceGround
Oblivious
AvalancheStone EdgeEarthquakeHail
You Win
Abomasnow
Lv 42
GrassIce
Snow Warning
AvalancheWood HammerWater PulseFocus Blast
Risky
Froslass
Lv 44
IceGhost
Snow Cloak
BlizzardDouble TeamShadow BallPsychic
Volkner
Gym 8
Even

Castform trades roughly evenly with Volkner's team.

Even
Jolteon
Lv 46
Electric
Volt AbsorbImmune to Electric attacks
Thunder WaveCharge BeamIron TailQuick Attack
Even
Raichu
Lv 46
Electric
Static
Charge BeamFocus BlastSignal BeamQuick Attack
Even
Luxray
Lv 48
Electric
Rivalry
Ice FangThunder FangCrunchFire Fang
Risky
Electivire
Lv 50
Electric
Motor DriveImmune to Electric attacks
Thunder PunchFire PunchQuick AttackGiga Impact
Aaron
Elite Four
Even

Castform trades roughly evenly with Aaron's team.

You Win
Yanmega
Lv 49
BugFlying
Speed Boost
Air SlashBug BuzzU TurnDouble Team
Even
Scizor
Lv 49
BugSteel
Swarm
Iron HeadX ScissorNight SlashQuick Attack
You Win
Vespiquen
Lv 50
BugFlying
Pressure
Attack OrderDefend OrderHeal OrderPower Gem
Even
Heracross
Lv 51
BugFighting
Swarm
MegahornClose CombatNight SlashStone Edge
Even
Drapion
Lv 53
PoisonDark
Battle Armor
X ScissorCross PoisonIce FangAerial Ace
Bertha
Elite Four
Good

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

Easy KO
Whiscash
Lv 50
WaterGround
Oblivious
Earth PowerAqua TailZen HeadbuttSandstorm
You Win
Gliscor
Lv 53
GroundFlying
Hyper Cutter
EarthquakeIce FangFire FangThunder Fang
You Win
Hippowdon
Lv 52
Ground
Sand Stream
EarthquakeStone EdgeCrunchYawn
You Win
Golem
Lv 52
RockGround
Rock Head
EarthquakeFire PunchThunder PunchSandstorm
Even
Rhyperior
Lv 55
GroundRock
Lightning Rod
EarthquakeRock WreckerMegahornAvalanche
Flint
Elite Four
Even

Castform trades roughly evenly with Flint's team.

Even
Houndoom
Lv 52
DarkFire
Early Bird
FlamethrowerSludge BombDark PulseSunny Day
Even
Flareon
Lv 55
Fire
Flash FireImmune to Fire attacks
OverheatGiga ImpactQuick AttackWill O Wisp
Even
Rapidash
Lv 53
Fire
Run Away
Flare BlitzSolar BeamBounceSunny Day
Even
Infernape
Lv 55
FireFighting
Blaze
Flare BlitzThunder PunchMach PunchEarthquake
Even
Magmortar
Lv 57
Fire
Flame Body
FlamethrowerThunderboltSolar BeamHyper Beam
Lucian
Elite Four
Even

Castform trades roughly evenly with Lucian's team.

You Win
Mr Mime
Lv 53
Psychic
Soundproof
PsychicThunderboltReflectLight Screen
Even
Espeon
Lv 55
Psychic
Synchronize
PsychicShadow BallQuick AttackSignal Beam
Even
Bronzong
Lv 54
SteelPsychic
Levitate
PsychicGyro BallEarthquakeCalm Mind
Even
Alakazam
Lv 56
Psychic
Synchronize
PsychicEnergy BallFocus BlastRecover
Even
Gallade
Lv 59
PsychicFighting
Steadfast
Drain PunchPsycho CutLeaf BladeStone Edge
Jupiter
Commander
Good

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

Easy KO
Zubat
Lv 21
PoisonFlying
Inner Focus
Giga DrainWing AttackBite
You Win
Skuntank
Lv 23
PoisonDark
Stench
Night SlashPoison GasScreechSmokescreen
Mars
Commander
Good

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

You Win
Golbat
Lv 38
PoisonFlying
Inner Focus
Air CutterBiteToxicSupersonic
You Win
Bronzor
Lv 38
SteelPsychic
Levitate
Gyro BallExtrasensoryIron DefenseConfuse Ray
Even
Purugly
Lv 40
Normal
Thick Fat
SlashFeint AttackHypnosisFake Out
Saturn
Commander
Good

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

You Win
Golbat
Lv 42
PoisonFlying
Inner Focus
Air CutterBitePoison FangConfuse Ray
You Win
Bronzor
Lv 42
SteelPsychic
Levitate
Gyro BallExtrasensoryShadow BallConfuse Ray
Even
Toxicroak
Lv 44
PoisonFighting
Anticipation
Poison JabBrick BreakX ScissorFeint Attack
Cynthia
Champion
Even

Castform trades roughly evenly with Cynthia's team.

Risky
Spiritomb
Lv 58
GhostDark
Pressure
Dark PulsePsychicSilver WindShadow Ball
Even
Roserade
Lv 58
GrassPoison
Natural Cure
Energy BallSludge BombToxicExtrasensory
Even
Togekiss
Lv 60
NormalFlying
Hustle
Air SlashAura SphereWater PulseShock Wave
Risky
Lucario
Lv 60
FightingSteel
Steadfast
Aura SphereExtreme SpeedShadow BallStone Edge
Even
Milotic
Lv 58
Water
Marvel Scale
SurfIce BeamMirror CoatDragon Pulse
You Win
Garchomp
Lv 62
DragonGround
Sand Veil
Dragon RushEarthquakeFlamethrowerGiga Impact

Catchable

Post-game only
Type
Normal
Tier
C

Catch Castform in Trophy Garden (walking, Lv 22, rare). Post-National Dex.

View Castform locations

Platinum Castform Locations

Castform is a rare Trophy Garden spawn, and only once the National Dex is in hand. The post-game gate plus a thin rate inside the mansion grounds make this weather puff one of the slower Hoenn catches to land.

Wild Castform may be holding when caught:

Mystic Water (always) An item to be held by a Pokemon. It is a teardrop-shaped gem that ups the power of Water-type moves.

1 location to catch Castform

Encountered via tall grass encounters

Badge 5

Best Locations to Catch Castform in Platinum

How to Get Shiny Castform in Platinum

Castform appears rarely in the Trophy Garden, so a Poké Radar chain held to 40 is the path to its shiny. Compare Shiny Castform odds across every game

Normal vs Shiny
Normal Castform in PlatinumNormal
Shiny Castform in Platinum Shiny
Color ShiftGraytoPink
Shiny TierD Tier Shiny

Shiny Castform Evolution

Does Not Evolve
Castform does not evolve
Single-stage PokemonView Full Evolution Chart

Platinum Shiny Castform Calculator

3 Methods
Fastest Path

The best route is PokeRadar Chain at full boosts, about 1 in 200 on each try. Tune it below.

Step 1 · Encounter Method3 in Platinum

PokeRadar Chain: Chain shaking-grass patches without breaking the combo. The rate peaks at a chain of 40.

Masuda Method: Breed with a parent from a different-language game. Works on any breedable line.

Full Odds: Walk through grass, surf, or fish. Every encounter is its own independent shiny roll.

Step 2 · Boost Your Oddstap to add
00

How many you have done, or plan to do.

120,000
Shiny Odds Per Try1 / 200PokeRadar Chain
Chance By Now50.2%at 139 encountersAbout 5 in 10 hunters have one by now
What To Expect
ChanceEncountersTime
10%lucky few22----
25%one in four58----
50%coin flip139----
90%very likely460----
How is this calculated?

Every encounter has the same shiny chance, the Shiny Odds Per Try shown above. Each one is a separate roll that does not care how many you have already done, so the more you hunt, the higher your overall chance of at least one shiny. The formula below turns your odds and your number of tries into that combined chance.

chance after N tries = 1 − (1 − p)^N,  where  p = 1 / odds per try

Example at 1 in 8,192 (classic full odds): about 864 encounters for a 10 percent chance, 5,678 for 50 percent, and 18,862 for 90 percent.

The table above flips that around: it shows how many encounters it takes to reach a 10, 25, 50, and 90 percent chance at your current odds. Turning on boosts like the Shiny Charm, sandwiches, or chains improves your odds, so the encounter numbers drop.

These are estimates, not promises. Most games have no pity counter, meaning no guaranteed shiny no matter how many you hunt, so even Very Likely is not guaranteed: some hunters find one early, others go well past that point.

Where these shiny odds come from: Read our full methodology

Curious how fast a hunt could go? Work out your Platinum shiny odds for Castform.

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 IV Type Chart
  • Fairy type does not exist — Dragon has fewer checks
  • Physical / Special split now per-move (introduced Gen IV)

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

Heracross
Heracross
BugFighting
B
Breloom
Breloom
GrassFighting
A
Gallade
Gallade
PsychicFighting
B
Infernape
Infernape
FireFighting
A
Toxicroak
Toxicroak
PoisonFighting
C

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. Its eggs take an average time to hatch. View every chain in the Evolution Chart.

How to Evolve

No Evolution
Castform
#351Castform
Does not evolve

Breeding

Very Easy

Breed Castform easily with 31 breeding partners from the Amorphous and Fairy egg groups. Pass egg moves like Amnesia, Disable, Future Sight and 3 more to offspring.

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

Pt Castform Best Moveset

70 across every stat and completely dependent on weather for any identity. The moveset changes type and form through AbilityForecast in sun, rain, or hail, but the stats behind it are never strong enough to threaten.

Best Build

Experimental
Special Tank
Ability
Forecast
Item
Life OrbPOWER
Best Nature for Castform
Quiet+SPA

Castform best EVs are HP and Sp. Atk

EVs

Special Tank Moveset

  • Weather BallSTAB
  • FlamethrowerCoverage
  • Hidden Power Psychic
  • SubstituteUtility

Moves List

The natural movepool does the job, but Amnesia and Disable from the egg pool give Castform something extra. Pair those with Last Resort and Facade for STAB and coverage across 8 types for reach, and the kit fills out nicely.

Level-Up Moves

Lv 1
Tackle
D5210035Normal
Lv 10
Ember
—4010025Fire
Lv 10
Powder Snow
—4010025Ice
Lv 10
Water Gun
—4010025Water
Lv 20
Hail
D——10Ice
Lv 20
Rain Dance
A——5Water
Lv 20
Sunny Day
A——5Fire
Lv 30
Weather Ball
B7510010Normal

TM Moves

32 of 36 TMs are obtainable before the Elite Four

TM
TM45
AttractAmity Squarebadge 2
——10015Normal
TM72
Avalanche-4Prize for defeating Candicenot until badge 7
D6010010Ice
TM14
BlizzardLake Acuitybadge 3
D120705Ice
TM78
CaptivateRoute 204badge 2
——10020Normal
TM32
Double TeamWayward Cavebadge 2
———15Normal
TM58
Endure+4Veilstone Game Cornerbadge 3
C——10Normal
TM53
Energy BallRoute 226
C8010010Grass
TM42
FacadeSurvival Area
C10510020Normal
TM38
Fire BlastLake Veritybadge 3
C120855Fire
TM35
FlamethrowerVeilstone Game Cornerbadge 3
B9510015Fire
TM70D—10020Normal
TM21
FrustrationVeilstone Game Cornerbadge 3
D—10020Normal
TM10
Hidden PowerVeilstone Game Cornerbadge 3
C9010015Normal
TM13
Ice BeamRoute 216badge 3
C9510010Ice
TM83
Natural GiftVeilstone Department Storebadge 3
D—10015Normal
TM17C——10Normal
TM77
Psych UpRoute 211badge 5
———10Normal
TM44C——10Psychic
TM27D—10020Normal
TM43
Secret PowerAmity Squarebadge 2
—10510020Normal
TM30
Shadow BallRoute 210badge 5
D8010015Ghost
TM34
Shock WaveRoute 215badge 3
D60—20Electric
TM82
Sleep TalkEterna Forestbadge 2
C——10Normal
TM22A12010010Grass
TM90
SubstituteVeilstone Game Cornerbadge 2
A——10Normal
TM87
SwaggerPokémon Mansionbadge 4
——9015Normal
TM46
ThiefEterna Citybadge 2
D6010025Dark
TM25
ThunderLake Valorbadge 3
A1207010Electric
TM73
Thunder WaveExchange Service Corner counter at the Battle Frontier, which you enter from the Fight Area
C—10020Electric
TM24
ThunderboltVeilstone Game Cornerbadge 3
C9510015Electric
TM06
ToxicRoute 212badge 4
C—8510Poison
TM03
Water PulseRavaged Pathbadge 5
D6010020Water

Egg Moves

Egg
Egg
Amnesia
D——20Psychic
Egg
Disable
D—8020Normal
Egg
Future Sight
C12010010Psychic
Egg
Lucky Chant
———30Normal
Egg
Ominous Wind
D601005Ghost
Egg
Psych Up
———10Normal

Tutor Moves

Tut
Tutor
Icy Wind
D559515Ice
Tutor
Last Resort
B1951005Normal
Tutor
Ominous Wind
D601005Ghost
Tutor
Snore
D6010015Normal
Tutor
Swift
—90—20Normal

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

Its appearance changes with the weather. Recently, its molecules were found to be just like water.

Pokemon Platinum

Castform Platinum Guide

  • Yes. Wild Castform in Platinum can hold Mystic Water (always). Use Thief (TM46) or Covet to swipe the held item without affecting your catch chance. Quickest way to farm rare items like Mystic Water.

  • For Platinum, it depends on your team. Castform rates C-Tier. Not a powerhouse, but the Normal coverage might be exactly what you're missing.

  • Yes. Castform is a post-game Pokemon. You need to defeat the Elite Four and enter the Hall of Fame first. Castform becomes available after the main story is complete in Platinum.

  • In Platinum, use Castform as a balanced. Special attacks are the main output. Speed is middling,

  • For Platinum, run Quiet on Castform. +Sp. Atk is what matters, and the -Speed cut doesn't hurt this set. Fits the balanced role.

Game Availability

Castform first appeared in Ruby & Sapphire and has been available in 13 games across 7 generations. Obtainable through wild encounters in most titles where it appears.

Explore

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