
Is Castform Good in Ultra Sun & Ultra Moon Playthrough?
Normal-type that changes form with weather. AbilityForecast shifts its type to Fire, Water, or Ice. Interesting gimmick, but the base stats are too low to use the form changes effectively in boss fights.
Castform resists most of Ilima's coverage and hits back hard.
Castform trades roughly evenly with Hala's team.
Castform has the type edge here and should clean up Lana's team.
ElectricSteelReceived as a Totem-sized gift Pokemon by collecting enou... (Ultra Moon only)
BugElectricReceived as a Totem-sized gift Pokemon by collecting enou... (Ultra Sun only)
GrassReceived as a Totem-sized gift Pokemon by collecting enou... (Ultra Sun only)
GhostFairyReceived as a Totem-sized gift Pokemon by collecting enou...
Castform trades roughly evenly with Kiawe's team.
Castform has the type edge here and should clean up Mallow's team.
Castform trades roughly evenly with Olivia's team.
Sophocles's typing presses Castform's defenses.
Acerola's typing presses Castform's defenses.
Castform trades roughly evenly with Nanu's team.
Castform has the type edge here and should clean up Mina's team.
Castform has the type edge here and should clean up Hapu's team.
Molayne's team hits Castform's weaknesses hard.
Castform trades roughly evenly with Olivia's team.
Castform trades roughly evenly with Acerola's team.
Castform trades roughly evenly with Kahili's team.
Castform trades roughly evenly with Kukui's team.
Catch Castform on Lush Jungle (walking, Lv 19-22). Alternate S.O.S. encounters; Called by any Pokémon during a sandstorm/hail.
Ultra Sun & Ultra Moon Castform Locations
moderate rates for Castform across 38 locations in mid-game routes. Nothing complicated. Check the sorted list below, compare the top few options, and head to whichever is closest.
Best Locations to Catch Castform in Ultra Sun & Ultra Moon
You can catch Castform through 19 walking encounters from Lv. 19-45, but availability differs between Ultra Moon and Ultra Sun. Some spots are exclusive to one version.
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.
| Damage | Types |
|---|---|
| 2x (Weak) | Fighting |
| 0x (Immune) | Ghost |
What is Castform Weak Against
GoodBest Pokemon Against Castform
Hawlucha Fighting | A | |
Machop Fighting | C | |
Crabrawler Fighting | C | |
Mankey Fighting | C | |
Makuhita Fighting | C | |
Hawlucha Fighting | A | |
Machop Fighting | C | |
Crabrawler Fighting | C | |
Mankey Fighting | C | |
Makuhita Fighting | C | |
Hawlucha Fighting | A | |
Machop Fighting | C | |
Crabrawler Fighting | C | |
Mankey Fighting | C | |
Makuhita Fighting | C | |
Passimian Fighting | C | |
Gallade PsychicFighting | C | |
Hawlucha Fighting | A | |
Combusken FireFighting | C | |
Crabrawler Fighting | C | |
Passimian Fighting | C | |
Available Move Moves
Damage vs Castform View Passimian builds →Close Combat 2x142-167%KO | ||
Blaziken FireFighting | B | |
Available Move Moves
Damage vs Castform View Blaziken builds →High Jump Kick 2x153-181%KO | ||
Infernape FireFighting | B | |
Available Move Moves
Damage vs Castform View Infernape builds →Close Combat 2x126-149%KO | ||
Bewear NormalFighting | B | |
Obtain MethodHauoli City Interact Encounter | ||
Pangoro FightingDark | C | |
Passimian Fighting | C | |
Available Move Moves
Damage vs Castform View Passimian builds →Close Combat 2x142-167%KO | ||
Hariyama Fighting | C | |
Available Move Moves
Damage vs Castform View Hariyama builds →Close Combat 2x142-167%KO | ||
Gallade PsychicFighting | C | |
Available Move Moves
Damage vs Castform View Gallade builds →Close Combat 2x147-173%KO | ||
Blaziken FireFighting | B | |
Available Move Moves
Damage vs Castform View Blaziken builds →High Jump Kick 2x155-183%KO | ||
Bewear NormalFighting | B | |
Obtain MethodHauoli City Interact Encounter | ||
Terrakion RockFighting | B | |
Obtain MethodUltra Space Wilds Interact Encounter Available Move Moves
Damage vs Castform View Terrakion builds →Close Combat 2x155-182%KO | ||
Cobalion SteelFighting | B | |
Obtain MethodUltra Space Wilds Interact Encounter Available Move Moves
Damage vs Castform View Cobalion builds →Close Combat 2x115-135%KO | ||
Bewear NormalFighting | B | |
Obtain MethodHauoli City Interact Encounter | ||
Passimian Fighting | C | |
Available Move Moves
Damage vs Castform View Passimian builds →Close Combat 2x145-171%KO | ||
Heracross BugFighting | B | |
Available Move Moves
Damage vs Castform View Heracross builds →Close Combat 2x151-177%KO | ||
Castform Evolutions
No evolution chain to worry about here. Castform is a standalone Pokemon with plenty of partners for breeding through two egg groups. Eggs come out average hatch time. View every chain in the Evolution Chart.
How to Evolve
Breeding
Breed Castform easily with 52 breeding partners from the Indeterminate and Fairy egg groups. Pass egg moves like Amnesia, Clear Smog, Cosmic Power and 7 more to offspring.
USUM Castform Best Moveset
AbilityForecast changes Castform's type and form to match the active weather: Fire in sun, Water in rain, Ice in hail. 70 across every stat. The moveset adapts to weather but the base stats prevent meaningful damage regardless of form. A concept without the stats to execute it.
Best Build
Castform best EVs are Sp. Atk and Speed
Special Sweeper Moveset
- Rain Dance
- Weather Ball
- Thunder
- Hurricane
Recommended Teammates
Moves List
Breadth over depth defines this movepool. Castform won't stack one type's damage ceiling, but coverage across 10 types means it always has an effective option. Last Resort and Headbutt anchor the STAB core.
How to Read the Moves Table
Tabs
- Level-Up
- Learned by leveling up.
- TM
- Taught by a Technical Machine.
- Egg
- Inherited via breeding.
- Tutor
- NPC tutor (cost: items, BP, money).
- Reminder
- An NPC reteaches any move this Pokemon could have learned by leveling up.
- Transfer
- Carried over from an older game using Pokemon HOME.
- Event
- Given out through Mystery Gift events.
Visual Signals
CAT (Category)
How the move deals damage and which stats it uses.
A small dot on the icon's corner marks the move as contact. That triggers abilities like Static, Flame Body, Rough Skin, or Iron Barbs, plus items like Rocky Helmet and Sticky Barb.
Tier (S to D)
Each move's competitive rank in RankedBoost's system. TM, Egg, and Tutor sort by tier by default (best first). On Level-Up, click the Tier header to do the same.
PWR (Power)
Base damage. Numbers shown in a type color include STAB (base × 1.5). Hover any colored number to see the math.
— means no power (status moves) or variable power.
Sorting & Filter
Click any column header to sort. Level-Up opens with Lv 1 at the top. TM, Egg, and Tutor open with the highest-tier moves at the top.
Search filters by move name or type. The Filter button limits the list to STAB, Physical, Special, or Status moves.
Level-Up Moves
TM Moves
Egg Moves
Tutor Moves
Base Stats
Although its form changes with the weather, that is apparently the result of a chemical reaction and not the result of its own free will.
Its form changes depending on the weather. The rougher conditions get, the rougher Castform’s disposition!
Castform Ultra Sun & Ultra Moon Guide
In Ultra Sun & Ultra Moon, watch for Machamp (Fighting) when using Castform. They all hit it super-effectively with STAB. Only 1 weakness means fewer dedicated counters to worry about.
For Ultra Sun & Ultra Moon, it depends on your team. Castform at 420 BST isn't a powerhouse, but the Normal coverage might be exactly what you're missing.
In Ultra Sun & Ultra Moon, Castform has a 420 base stat total and ranks as C-Tier: a niche pick in Ultra Sun & Ultra Moon's meta. It works best as a balanced. Raindance with Wateriumz is the standard set.
Forecast changes Castform's type and form to match the weather. That's the one you want on Castform. It's the only ability Castform has.
In Ultra Sun & Ultra Moon, Castform fills the balanced role. It's a special attacker with base 70 Sp. Atk. Base 70 Speed is workable. Faster than some, slower than many. And it's enough bulk to take a hit or two.
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.
Click a game to view version-specific details
- Gen 1RB

Red & Blue - Gen 1Y
Yellow - Gen 2GS

Gold & Silver - Gen 2C
Crystal - Gen 3RSDebut

Ruby & Sapphire - Gen 3E
Emerald - Gen 3FRLG

FireRed & LeafGreen - Gen 4DP

Diamond & Pearl - Gen 4Pt
Platinum - Gen 4HGSS

HeartGold & SoulSilver - Gen 5BW

Black & White - Gen 5B2W2

Black 2 & White 2 - Gen 6XY

X & Y - Gen 6ORAS

Omega Ruby & Alpha Sapphire - Gen 7SM

Sun & Moon - Gen 7USUM

Ultra Sun & Ultra Moon - Gen 7LGPE

Let's Go Pikachu & Eevee - Gen 8SwSh

Sword & Shield - Gen 8BDSP

Brilliant Diamond & Shining Pearl - Gen 8PLA
Legends: Arceus - Gen 9SV

Scarlet & Violet - Gen 9LZA
Legends: Z-A - Gen 10WW

Winds & Waves