Partner ideas
for Castform (rainy form)
Pairing ideas, not prescriptions — ideas to test, with every reason traceable. Each card sums up what the partner does for Castform: completing its plan, patching weaknesses, breaking walls — and how often the two already team up in ranked play. Downsides sit under the card, never hidden. Open a card’s Partnership Report for every reason.
Often paired (2)
Abomasnow
GrassIceOn 23% of Castform's ranked teams
Resists GrassResists ElectricHits Grass super-effectively with BlizzardHits Electric super-effectively with Earth PowerAdds long-game durabilityBreaks Water walls with Wood Hammer
Rhyperior
GroundRockOn 15% of Castform's ranked teams
Lightning Rod redirects single-target Electric attacks away from Castform while both are activeHits Grass super-effectively with Ice PunchHits Electric super-effectively with EarthquakeBreaks Grass walls with Ice PunchBreaks Dragon walls with Ice Punch
Defensive glue (22)
Meganium
GrassCovers its Grass and Electric weaknesses
Hits Grass super-effectively with Pollen PuffHits Electric super-effectively with EarthquakeAdds anti-Trick Room pressureAdds anti-setup pressureAdds long-game durabilityBreaks Water walls with Leaf Storm
Goodra
DragonCovers its Grass and Electric weaknesses
Castform resists its SurfHits Grass super-effectively with FlamethrowerAdds long-game durabilityBreaks Water walls with ThunderBreaks Grass walls with Flamethrower
Hydreigon
DarkDragonCovers its Grass and Electric weaknesses
Hits Grass super-effectively with Heat WaveHits Electric super-effectively with Earth PowerAdds anti-Trick Room pressureAdds anti-setup pressureBreaks Grass walls with Heat WaveBreaks Dragon walls with Draco Meteor
Decidueyehisuian
GrassFightingCovers its Grass and Electric weaknesses
Hits Grass super-effectively with Brave BirdAdds anti-Trick Room pressureAdds anti-setup pressureAdds long-game durabilityBreaks Water walls with Leaf BladeBreaks Grass walls with Brave Bird
Venusaur
GrassPoisonCovers its Grass and Electric weaknesses
Hits Grass super-effectively with Sludge BombHits Electric super-effectively with Earth PowerAdds long-game durabilityBreaks Water walls with Leaf StormBreaks Grass walls with Sludge Bomb
Hydrapple
GrassDragonCovers its Grass and Electric weaknesses
Hits Grass super-effectively with Pollen PuffHits Electric super-effectively with Earth PowerAdds long-game durabilityBreaks Water walls with Leaf StormBreaks Grass walls with Pollen Puff
Drampa
NormalDragonCovers its Grass and Electric weaknesses
Hits Grass super-effectively with FlamethrowerHits Electric super-effectively with Earth PowerAdds long-game durabilityBreaks Water walls with Energy BallBreaks Grass walls with Flamethrower
Emolga
ElectricFlyingCovers its Grass and Electric weaknesses
Hits Grass super-effectively with Air SlashAdds anti-Trick Room pressureAdds anti-setup pressureBreaks Water walls with ThunderboltBreaks Grass walls with Air Slash
Skeledirge
FireGhostCovers Grass and Electric offensively
Resists GrassAdds anti-Trick Room pressureAdds anti-setup pressureAdds long-game durabilityBreaks Grass walls with Heat WaveBreaks Dragon walls with Alluring Voice
Decidueye
GrassGhostCovers its Grass and Electric weaknesses
Hits Grass super-effectively with Brave BirdAdds anti-setup pressureAdds long-game durabilityBreaks Water walls with Leaf BladeBreaks Grass walls with Brave Bird
Victreebel
GrassPoisonCovers its Grass and Electric weaknesses
Hits Grass super-effectively with Sludge WaveAdds anti-Trick Room pressureAdds anti-setup pressureBreaks Water walls with Leaf StormBreaks Grass walls with Sludge Wave
Simisage
GrassCovers its Grass and Electric weaknesses
Hits Grass super-effectively with Gunk ShotAdds anti-Trick Room pressureAdds anti-setup pressureBreaks Water walls with Leaf StormBreaks Grass walls with Gunk Shot
Goodrahisuian
SteelDragonCovers its Grass and Electric weaknesses
Hits Grass super-effectively with Ice BeamAdds long-game durabilityBreaks Water walls with ThunderboltBreaks Grass walls with Ice Beam
Sceptile
GrassHits Electric super-effectively with Earth Power
Resists GrassLightning Rod redirects single-target Electric attacks away from Castform while both are activeAdds team-wide guard supportBreaks Water walls with Leaf StormBreaks Dragon walls with Dragon Pulse
Serperior
GrassCovers its Grass and Electric weaknesses
Adds anti-Trick Room pressureAdds anti-setup pressureAdds long-game durabilityBreaks Water walls with Leaf StormBreaks Dragon walls with Dragon Pulse
Altaria
DragonFlyingCovers Grass and Electric offensively
Resists GrassAdds anti-setup pressureAdds long-game durabilityBreaks Grass walls with Brave BirdBreaks Dragon walls with Draco Meteor
Stunfisk
GroundElectricCastform resists its Surf
Immune to ElectricHits Grass super-effectively with Sludge WaveHits Electric super-effectively with EarthquakeBreaks Water walls with ThunderBreaks Grass walls with Sludge Wave
Vileplume
GrassPoisonCovers its Grass and Electric weaknesses
Hits Grass super-effectively with Sludge BombAdds long-game durabilityBreaks Water walls with Leaf StormBreaks Grass walls with Sludge Bomb
Dragalge
PoisonDragonCovers its Grass and Electric weaknesses
Hits Grass super-effectively with Sludge WaveAdds anti-setup pressureBreaks Grass walls with Sludge WaveBreaks Dragon walls with Draco Meteor
Stunfiskgalarian
GroundSteelCastform resists its Surf
Immune to ElectricHits Grass super-effectively with Sludge WaveHits Electric super-effectively with EarthquakeBreaks Grass walls with Sludge Wave
Slowbrogalarian
PoisonPsychicHits Grass super-effectively with Shell Side Arm
Resists GrassAdds anti-Trick Room pressureAdds anti-setup pressureAdds long-game durabilityBreaks Grass walls with Shell Side ArmBreaks Dragon walls with Ice Beam
Chesnaught
GrassFightingCovers its Grass and Electric weaknesses
Adds team-wide guard supportAdds anti-Trick Room pressureAdds anti-setup pressureAdds long-game durabilityBreaks Water walls with Wood Hammer