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7 votes
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If you have a good competitive moveset for Castform, post an answer below and upvote the best ones. Movesets for any of its pre-evolutions can also be shared on this thread.

Be sure to include full set details in your post, e.g. items, abilities, natures and EVs. Some explanation, including the intended game mode for your set, is also appreciated. Access the full list of guidelines here.

Castform Pokedex and learnset for reference.

Sprite Sprite Sprite Sprite

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14 Answers

3 votes

Rain Castform
Rain Castform @ Life Orb/Expert Belt

Trait: Forecast

EVs: 4 HP / 252 SpA / 252 Spe

Modest Nature (+SpA, -Atk)

  • Rain Dance
  • Weather Ball/Hydro Pump
  • Thunder
  • Ice Beam

Okay, 252 SpA EVs and a Modest Nature is pretty crucial with 70 Base SpA.
Rain Dance activates it's Rain forme, because that's what this set it for.
Hydro Pump is STAB, and has a bit more power than Weather Ball at the cost of some accuracy. While Weather Ball is a bit more reliable and full accuracy.
Thunder works well with Rain Dance because it gets full accuracy, and is powerful gives some coverage and a good chance of Paralyze.
Ice Beam rounds out the coverage by hitting Grass types and gives BoltBeam exept there's not Tbolt.

Sun Castform
Sun Castform @ Life Orb/Expert Belt

Trait: Forecast

EVs: 4 HP / 252 SpA / 252 Spe

Modest Nature (+SpA, -Atk)

  • Sunny Day
  • Weather Ball/Fire Blast
  • SolarBeam
  • Hidden Power Rock/Ice Beam

Sunny Day powers up Fire Blast and gives Fire Blast STAB and gives Solarbeam a nocharge up turn.
Fire Blast is STAB because of Sunny Day, and gets a boost from the sun. Weather Ball is another option though because of the more reliability.
SolarBeam works well with Sunny Day, and in the lower tiers there shouldn't really be weather war. It also gets excellent coverage along with Fire Blast.
Hidden Power Rock hits Fire types for some decent damage, Ice Beam gives some further coverage.

Hail Castform
Castform @ Life Orb/Expert Belt

Trait: Forecast

EVs: 4 HP / 252 SpA / 252 Spe

Modest Nature (+SpA, -Atk)

  • Hail
  • Blizzard
  • Thunderbolt
  • Hydro Pump

Hail gives it a nice attack in STAB Blizzard.
Blizzard is STAB and has full accucary because of Hail.
Thunderbolt hits Water types and has good coverage along with Blizzard.
Hydro Pump hits Fire types hard and gives some coverage.

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edited by
This is an extremely good moveset for each form. A couple of additions i'd offer is slashing Ice Beam on Rain Castform's moveset with Hurricane, and to slash Life Orb/Expert Belt with the Weather rocks (Damp Rock, Heat Rock, Icy Rock). Other than that, amazing work on this. (and yes I know that this was in 2012)
3 votes

Castform (M) @ Life Orb

Trait: Forecast
EVs: 4 HP / 252 SAtk / 252 Spd
Timid Nature (+Spd, -Atk)
- Rain Dance
- Weather Ball
- Thunder
- Ice Beam

In the case that you already have rain support, Work up is a nice replacement for rain dance. Other than that, he can normally sweep decently in the lower tiers.

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+1 for the photo lol
The photo is genius
1 vote

Sun team sweeper:
Castform-Sun@Life Orb
Castform
Ability:Forecast
Nature:Timid
EVs:252 SpA / 252 Spe / 4 HP
•Weather Ball
•Solar Beam
•Ice Beam
•Thunderbolt
Weather Ball is STAB. Solar Beam is one turn in sun and covers ground and rock. Ice Beam and Thunderbolt is for BoltBeam, and Thunderbolt covers water.

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0 votes

Support Castform:
Castform (M) @ Heat Rock
Trait: Forecast
EVs: 80 HP / 180 Def / 8 SAtk / 180 SDef / 60 Spd
Modest Nature (+SAtk, -Atk)
- Sunny Day
- Tailwind
- Fire Blast
- SolarBeam

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0 votes

Castform (F) @ Focus Sash
Ability: Forecast
EVs: 4 HP / 252 SpA / 252 Spe
Timid Nature
- Hydro Pump
- Hurricane
- Thunder
- Rain Dance

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0 votes

Rainy Castform time! :D

Castform @ Damp Rock / Expert Belt / Life Orb
Ability: Forecast
Timid Nature
EVs: 252 SpA / 4 SpD / 252 Spe
-Rain Dance
-Hurricane
-Thunder
-Hydro Pump / Weather Ball

Rain Dance makes Castform actually be somewhat threatening. Hurricane and Thunder are strong coverage moves that never miss thanks to Rain, and Weather Ball or Hydro Pump can give strong STAB. I prefer Weather Ball cuz Hydro Pump misses too much for me.

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0 votes

Castform @ Mystic Water
ABILITY: Forecast
NATURE: Timid
EVs: 252 SpAtk/252 Spd/4 HP

Rain Dance
Hydro Pump
Thunder
Ice Beam

Never, ever, ever use this Pokemon.

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0 votes

Doubles support:
Castform@Leftovers
Castform
Ability:Forecast
Nature:Impish or Careful
EVs:252 HP / 128 SpD / 128 Def
•Tailwind
•Defog
•Icy Wind
•Return
Tailwind boosts it and its teammates’ speed. Defog gets rid of hazards. Icy wind lowers their speed. Return is STAB.

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0 votes

Rain Team Sweeper:
Castform-Rain@Life Orb
Castform
Ability:Forecast
Nature:Timid
EVs:252 SpA / 252 Spe / 4 HP
•Weather Ball
•Hurricane
•Thunder
•Shadow Ball
Weather ball is awesome STAB. Hurricane has 100% accuracy in rain, high power, and covers grass and bug. Thunder is 100% accuracy in rain, high power, and covers water and flying. Shadow ball covers ghost and psychic.

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0 votes

Doubles sweeper(hail teams):
Castform-Hail@Choice Scarf
Castform
Ability:Forecast
Nature:Modest
EVs:252 SpA / 252 Spe / 4 HP
•Blizzard
•Flamethrower
•Thunderbolt
•Scald
Blizzard is incredibly powerful STAB that has perfect accuracy in hail and hits both opponents in doubles. Thunder bolt gives it BoltBeam. Flamethrower covers steel weakness. Scald covers rock and fire weaknesses.

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nice set.
0 votes

Rainy Form
Gen 7 ZU

Castform @ Waterium Z
Ability: Forecast
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Rain Dance
- Weather Ball / Hydro Pump / Scald
- Hurricane
- Thunder

Z-Rain Dance boosts Castform's speed by one stage and sets up rain. Weather Ball is STAB and gets boosted by the rain. Hydro Pump is for a bit more power and can be water STAB for outside of the rain, but is less accuracte. Scald is another option for water STAB, and it has a 30% to burn opposing Pokemon. Hurricane hits grass types and doesn't miss in rain. Thunder is for coverage and also doesn't miss in the rain.

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0 votes

Hail Form
Gen 7 ZU

Castform @ Icium Z
Ability: Forecast
EVs: 252 SpA / 4 SpD / 252 Spe
Timid / Modest Nature
IVs: 0 Atk
- Hail
- Blizzard
- Flamethrower
- Scald

Icium-Z is for Z-Hail, which sets up Hail and boosts Castform's speed by one stage. Blizzard is STAB and doesn't miss in Hail. Flamethrower deals with steel types. Scald is for rock and fire types.

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Hail yeah!
0 votes

Hell yeah?More like hail yeah.Gen 3 physical sweeping castform.
Castform @ Choice Band
Forecast
Jolly/Adamant nature
252 Atk/252 Spe/4 HP
Body Slam/Return/Frustration/Double Edge/Facade
Shadow Ball
Hidden Power(any physical type)
Sleep Talk
Choice Band is to hit hard.Forecast is the only ability it gets,but its useless.Jolly or Adamant focus on speed or attack.The EVs maximize your attack and speed,and focus a bit on HP.Body Slam is powerful STAB that can paralyze.Return and Frustration are more powerful,but it loses the chance to paralyze.Double Edge is more powerful,but inflicts recoil.Facade can be more powerful than all the other choices,but is situational.Shadow Ball is coverage.Hidden Power is more coverage,but you can choose the physical type you want.Sleep Talk is to counter all the sleepers in Gen 3.Kind of gimmicky,but can be fun to play if you use the right moves.

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0 votes

Castform (M) @ Expert Belt
Ability: Forecast
Evs: 252 SpA/128 SpD/128 Spe/4 HP
Nature: Modest (+SpA -Atk)/Calm (+SpD -Atk)

-Rain Dance
-Thunder
-Weather Ball/Hydro Pump
-Hurricane

This set is pretty self explanatory. Set up rain dance and change to rain form. Then take advantage of Thunder and Hurricane accuracy boost and hit hard. Expert belt gives you tons of damage to doll out to everyone. Weather Ball/Hydro Pump for STAB.

Another set is:
Castform (M) @ Expert Belt
Ability: Forecast
Evs: 252 SpA/128 SpD/128 Spe/4 HP
Nature: Modest (+SpA -Atk)/Calm (+SpD -Atk)

-Sunny Day
-Hex (?)
-Solar Beam
-Fire Blast

Once again your going to want to set up your weather condition, then spam Fire Blast and Solar Beam. Solar Beam (I think) gives you perfect weakness coverage. Hex can double damage with the help of a burn from Fire Blast

Side note: I think (please correct me on this) that Fire Blast also gets a power boost from Sunny Day as well an accuracy boost, which makes it even more DEADLY! :)

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Sunlight boosts fire blast's damage but does not change its accuracy.
Also there's too much evs. you can't have 512 evs.