HomePokédex › Trash Wormadam
#0413 · Generation IV · form of Wormadam

Trash Wormadam

Bug / Steel · Bagworm Pokémon — first seen in Generation IV.

Showing the official games. Pick a ROM hack to see how it changes this Pokémon, or compare all of them.

Base stats

HP60
Attack69
Defense95
Sp. Attack69
Sp. Defense95
Speed36
Total424
StatBaseMinMax
HP60230324
Attack69128260
Defense95175317
Sp. Attack69128260
Sp. Defense95175317
Speed3669188

Min and max are at level 100: the minimum is 0 IVs, 0 EVs and a hindering nature, the maximum 31 IVs, 252 EVs and a beneficial nature. Shedinja's HP is always 1 whatever the formula says.

Type defences

Damage Trash Wormadam takes from each attacking type.

×4
Fire
×½
NormalBugSteelPsychicIceDragonFairy
×¼
Grass
×0
Poison
×1
FightingFlyingGroundRockGhostWaterElectricDark

Evolution

Methods are the current official ones. A ROM hack may change them — trade evolutions especially; the guide table below says which do.

In the ROM hacks it evolves differently

Each guide's own line, in the words its creator published.

Other forms

Moves by official game

Level-up, TM/HM, tutor and egg moves exactly as each game has them. The newest game this site covers is open; the rest fold out.

Ultra Sun / Ultra Moon20 level-up · 28 TM/HM · 14 tutor

Level-up

LvMoveTypeCat.PowerAcc.PP
Quiver DanceBugStatus20
1TackleNormalPhysical40100%35
1ProtectNormalStatus10
1Metal BurstSteelPhysical100%10
1Sucker PunchDarkPhysical70100%5
1Bug BiteBugPhysical60100%20
1Quiver DanceBugStatus20
10ProtectNormalStatus10
15Bug BiteBugPhysical60100%20
20Hidden PowerNormalSpecial60100%15
23ConfusionPsychicSpecial50100%25
26Mirror ShotSteelSpecial6585%10
29Metal SoundSteelStatus85%40
32PsybeamPsychicSpecial65100%20
35CaptivateNormalStatus100%20
38FlailNormalPhysical100%15
41AttractNormalStatus100%15
44PsychicPsychicSpecial90100%10
47Iron HeadSteelPhysical80100%15
50Bug BuzzBugSpecial90100%10

TM & HM

TMMoveTypeCat.PowerAcc.PP
TM06ToxicPoisonStatus90%10
TM09VenoshockPoisonSpecial65100%10
TM10Hidden PowerNormalSpecial60100%15
TM100ConfideNormalStatus20
TM11Sunny DayFireStatus5
TM15Hyper BeamNormalSpecial15090%5
TM17ProtectNormalStatus10
TM18Rain DanceWaterStatus5
TM20SafeguardNormalStatus25
TM21FrustrationNormalPhysical100%20
TM27ReturnNormalPhysical100%20
TM29PsychicPsychicSpecial90100%10
TM30Shadow BallGhostSpecial80100%15
TM32Double TeamNormalStatus15
TM42FacadeNormalPhysical70100%20
TM44RestPsychicStatus5
TM45AttractNormalStatus100%15
TM46ThiefDarkPhysical60100%25
TM48RoundNormalSpecial60100%15
TM68Giga ImpactNormalPhysical15090%5
TM74Gyro BallSteelPhysical100%5
TM77Psych UpNormalStatus10
TM83InfestationBugSpecial20100%20
TM85Dream EaterPsychicSpecial100100%15
TM87SwaggerNormalStatus85%15
TM88Sleep TalkNormalStatus10
TM90SubstituteNormalStatus10
TM91Flash CannonSteelSpecial80100%10

Move tutor

MoveTypeCat.PowerAcc.PP
SnoreNormalSpecial50100%15
UproarNormalSpecial90100%10
EndeavorNormalPhysical100%5
Skill SwapPsychicStatus10
Signal BeamBugSpecial75100%15
Iron DefenseSteelStatus15
Magnet RiseElectricStatus10
Gunk ShotPoisonPhysical12080%5
Iron HeadSteelPhysical80100%15
Stealth RockRockStatus20
Bug BiteBugPhysical60100%20
TelekinesisPsychicStatus15
Ally SwitchPsychicStatus15
ElectrowebElectricSpecial5595%15
Sun / Moon20 level-up · 28 TM/HM

Level-up

LvMoveTypeCat.PowerAcc.PP
Quiver DanceBugStatus20
1TackleNormalPhysical40100%35
1ProtectNormalStatus10
1Metal BurstSteelPhysical100%10
1Sucker PunchDarkPhysical70100%5
1Bug BiteBugPhysical60100%20
1Quiver DanceBugStatus20
10ProtectNormalStatus10
15Bug BiteBugPhysical60100%20
20Hidden PowerNormalSpecial60100%15
23ConfusionPsychicSpecial50100%25
26Mirror ShotSteelSpecial6585%10
29Metal SoundSteelStatus85%40
32PsybeamPsychicSpecial65100%20
35CaptivateNormalStatus100%20
38FlailNormalPhysical100%15
41AttractNormalStatus100%15
44PsychicPsychicSpecial90100%10
47Iron HeadSteelPhysical80100%15
50Bug BuzzBugSpecial90100%10

TM & HM

TMMoveTypeCat.PowerAcc.PP
TM06ToxicPoisonStatus90%10
TM09VenoshockPoisonSpecial65100%10
TM10Hidden PowerNormalSpecial60100%15
TM100ConfideNormalStatus20
TM11Sunny DayFireStatus5
TM15Hyper BeamNormalSpecial15090%5
TM17ProtectNormalStatus10
TM18Rain DanceWaterStatus5
TM20SafeguardNormalStatus25
TM21FrustrationNormalPhysical100%20
TM27ReturnNormalPhysical100%20
TM29PsychicPsychicSpecial90100%10
TM30Shadow BallGhostSpecial80100%15
TM32Double TeamNormalStatus15
TM42FacadeNormalPhysical70100%20
TM44RestPsychicStatus5
TM45AttractNormalStatus100%15
TM46ThiefDarkPhysical60100%25
TM48RoundNormalSpecial60100%15
TM68Giga ImpactNormalPhysical15090%5
TM74Gyro BallSteelPhysical100%5
TM77Psych UpNormalStatus10
TM83InfestationBugSpecial20100%20
TM85Dream EaterPsychicSpecial100100%15
TM87SwaggerNormalStatus85%15
TM88Sleep TalkNormalStatus10
TM90SubstituteNormalStatus10
TM91Flash CannonSteelSpecial80100%10
Omega Ruby / Alpha Sapphire13 level-up · 31 TM/HM · 12 tutor

Level-up

LvMoveTypeCat.PowerAcc.PP
1TackleNormalPhysical40100%35
10ProtectNormalStatus10
15Bug BiteBugPhysical60100%20
20Hidden PowerNormalSpecial60100%15
23ConfusionPsychicSpecial50100%25
26Mirror ShotSteelSpecial6585%10
29Metal SoundSteelStatus85%40
32PsybeamPsychicSpecial65100%20
35CaptivateNormalStatus100%20
38FlailNormalPhysical100%15
41AttractNormalStatus100%15
44PsychicPsychicSpecial90100%10
47Iron HeadSteelPhysical80100%15

TM & HM

TMMoveTypeCat.PowerAcc.PP
TM06ToxicPoisonStatus90%10
TM09VenoshockPoisonSpecial65100%10
TM10Hidden PowerNormalSpecial60100%15
TM100ConfideNormalStatus20
TM11Sunny DayFireStatus5
TM15Hyper BeamNormalSpecial15090%5
TM17ProtectNormalStatus10
TM18Rain DanceWaterStatus5
TM20SafeguardNormalStatus25
TM21FrustrationNormalPhysical100%20
TM27ReturnNormalPhysical100%20
TM29PsychicPsychicSpecial90100%10
TM30Shadow BallGhostSpecial80100%15
TM32Double TeamNormalStatus15
TM42FacadeNormalPhysical70100%20
TM44RestPsychicStatus5
TM45AttractNormalStatus100%15
TM46ThiefDarkPhysical60100%25
TM48RoundNormalSpecial60100%15
TM68Giga ImpactNormalPhysical15090%5
TM70FlashNormalStatus100%20
TM74Gyro BallSteelPhysical100%5
TM76Struggle BugBugSpecial50100%20
TM77Psych UpNormalStatus10
TM83InfestationBugSpecial20100%20
TM85Dream EaterPsychicSpecial100100%15
TM87SwaggerNormalStatus85%15
TM88Sleep TalkNormalStatus10
TM90SubstituteNormalStatus10
TM91Flash CannonSteelSpecial80100%10
TM94Secret PowerNormalPhysical70100%20

Move tutor

MoveTypeCat.PowerAcc.PP
SnoreNormalSpecial50100%15
UproarNormalSpecial90100%10
EndeavorNormalPhysical100%5
Skill SwapPsychicStatus10
Signal BeamBugSpecial75100%15
Iron DefenseSteelStatus15
Magnet RiseElectricStatus10
Gunk ShotPoisonPhysical12080%5
Iron HeadSteelPhysical80100%15
Stealth RockRockStatus20
Bug BiteBugPhysical60100%20
ElectrowebElectricSpecial5595%15
X / Y13 level-up · 30 TM/HM

Level-up

LvMoveTypeCat.PowerAcc.PP
1TackleNormalPhysical40100%35
10ProtectNormalStatus10
15Bug BiteBugPhysical60100%20
20Hidden PowerNormalSpecial60100%15
23ConfusionPsychicSpecial50100%25
26Mirror ShotSteelSpecial6585%10
29Metal SoundSteelStatus85%40
32PsybeamPsychicSpecial65100%20
35CaptivateNormalStatus100%20
38FlailNormalPhysical100%15
41AttractNormalStatus100%15
44PsychicPsychicSpecial90100%10
47Iron HeadSteelPhysical80100%15

TM & HM

TMMoveTypeCat.PowerAcc.PP
TM06ToxicPoisonStatus90%10
TM09VenoshockPoisonSpecial65100%10
TM10Hidden PowerNormalSpecial60100%15
TM100ConfideNormalStatus20
TM11Sunny DayFireStatus5
TM15Hyper BeamNormalSpecial15090%5
TM17ProtectNormalStatus10
TM18Rain DanceWaterStatus5
TM20SafeguardNormalStatus25
TM21FrustrationNormalPhysical100%20
TM27ReturnNormalPhysical100%20
TM29PsychicPsychicSpecial90100%10
TM30Shadow BallGhostSpecial80100%15
TM32Double TeamNormalStatus15
TM42FacadeNormalPhysical70100%20
TM44RestPsychicStatus5
TM45AttractNormalStatus100%15
TM46ThiefDarkPhysical60100%25
TM48RoundNormalSpecial60100%15
TM68Giga ImpactNormalPhysical15090%5
TM70FlashNormalStatus100%20
TM74Gyro BallSteelPhysical100%5
TM76Struggle BugBugSpecial50100%20
TM77Psych UpNormalStatus10
TM83InfestationBugSpecial20100%20
TM85Dream EaterPsychicSpecial100100%15
TM87SwaggerNormalStatus85%15
TM88Sleep TalkNormalStatus10
TM90SubstituteNormalStatus10
TM91Flash CannonSteelSpecial80100%10
Black 2 / White 213 level-up · 27 TM/HM · 13 tutor

Level-up

LvMoveTypeCat.PowerAcc.PP
1TackleNormalPhysical40100%35
10ProtectNormalStatus10
15Bug BiteBugPhysical60100%20
20Hidden PowerNormalSpecial60100%15
23ConfusionPsychicSpecial50100%25
26Mirror ShotSteelSpecial6585%10
29Metal SoundSteelStatus85%40
32PsybeamPsychicSpecial65100%20
35CaptivateNormalStatus100%20
38FlailNormalPhysical100%15
41AttractNormalStatus100%15
44PsychicPsychicSpecial90100%10
47Iron HeadSteelPhysical80100%15

TM & HM

TMMoveTypeCat.PowerAcc.PP
TM06ToxicPoisonStatus90%10
TM09VenoshockPoisonSpecial65100%10
TM10Hidden PowerNormalSpecial60100%15
TM11Sunny DayFireStatus5
TM15Hyper BeamNormalSpecial15090%5
TM17ProtectNormalStatus10
TM18Rain DanceWaterStatus5
TM20SafeguardNormalStatus25
TM21FrustrationNormalPhysical100%20
TM27ReturnNormalPhysical100%20
TM29PsychicPsychicSpecial90100%10
TM30Shadow BallGhostSpecial80100%15
TM32Double TeamNormalStatus15
TM42FacadeNormalPhysical70100%20
TM44RestPsychicStatus5
TM45AttractNormalStatus100%15
TM46ThiefDarkPhysical60100%25
TM48RoundNormalSpecial60100%15
TM68Giga ImpactNormalPhysical15090%5
TM70FlashNormalStatus100%20
TM74Gyro BallSteelPhysical100%5
TM76Struggle BugBugSpecial50100%20
TM77Psych UpNormalStatus10
TM85Dream EaterPsychicSpecial100100%15
TM87SwaggerNormalStatus85%15
TM90SubstituteNormalStatus10
TM91Flash CannonSteelSpecial80100%10

Move tutor

MoveTypeCat.PowerAcc.PP
SnoreNormalSpecial50100%15
Sleep TalkNormalStatus10
UproarNormalSpecial90100%10
EndeavorNormalPhysical100%5
Skill SwapPsychicStatus10
Signal BeamBugSpecial75100%15
Iron DefenseSteelStatus15
Magnet RiseElectricStatus10
Gunk ShotPoisonPhysical12080%5
Iron HeadSteelPhysical80100%15
Stealth RockRockStatus20
Bug BiteBugPhysical60100%20
ElectrowebElectricSpecial5595%15
Black / White13 level-up · 27 TM/HM

Level-up

LvMoveTypeCat.PowerAcc.PP
1TackleNormalPhysical40100%35
10ProtectNormalStatus10
15Bug BiteBugPhysical60100%20
20Hidden PowerNormalSpecial60100%15
23ConfusionPsychicSpecial50100%25
26Mirror ShotSteelSpecial6585%10
29Metal SoundSteelStatus85%40
32PsybeamPsychicSpecial65100%20
35CaptivateNormalStatus100%20
38FlailNormalPhysical100%15
41AttractNormalStatus100%15
44PsychicPsychicSpecial90100%10
47Iron HeadSteelPhysical80100%15

TM & HM

TMMoveTypeCat.PowerAcc.PP
TM06ToxicPoisonStatus90%10
TM09VenoshockPoisonSpecial65100%10
TM10Hidden PowerNormalSpecial60100%15
TM11Sunny DayFireStatus5
TM15Hyper BeamNormalSpecial15090%5
TM17ProtectNormalStatus10
TM18Rain DanceWaterStatus5
TM20SafeguardNormalStatus25
TM21FrustrationNormalPhysical100%20
TM27ReturnNormalPhysical100%20
TM29PsychicPsychicSpecial90100%10
TM30Shadow BallGhostSpecial80100%15
TM32Double TeamNormalStatus15
TM42FacadeNormalPhysical70100%20
TM44RestPsychicStatus5
TM45AttractNormalStatus100%15
TM46ThiefDarkPhysical60100%25
TM48RoundNormalSpecial60100%15
TM68Giga ImpactNormalPhysical15090%5
TM70FlashNormalStatus100%20
TM74Gyro BallSteelPhysical100%5
TM76Struggle BugBugSpecial50100%20
TM77Psych UpNormalStatus10
TM85Dream EaterPsychicSpecial100100%15
TM87SwaggerNormalStatus85%15
TM90SubstituteNormalStatus10
TM91Flash CannonSteelSpecial80100%10
HeartGold / SoulSilver13 level-up · 31 TM/HM · 11 tutor

Level-up

LvMoveTypeCat.PowerAcc.PP
1TackleNormalPhysical40100%35
10ProtectNormalStatus10
15Bug BiteBugPhysical60100%20
20Hidden PowerNormalSpecial60100%15
23ConfusionPsychicSpecial50100%25
26Mirror ShotSteelSpecial6585%10
29Metal SoundSteelStatus85%40
32PsybeamPsychicSpecial65100%20
35CaptivateNormalStatus100%20
38FlailNormalPhysical100%15
41AttractNormalStatus100%15
44PsychicPsychicSpecial90100%10
47Iron HeadSteelPhysical80100%15

TM & HM

TMMoveTypeCat.PowerAcc.PP
TM06ToxicPoisonStatus90%10
TM10Hidden PowerNormalSpecial60100%15
TM11Sunny DayFireStatus5
TM15Hyper BeamNormalSpecial15090%5
TM17ProtectNormalStatus10
TM18Rain DanceWaterStatus5
TM20SafeguardNormalStatus25
TM21FrustrationNormalPhysical100%20
TM27ReturnNormalPhysical100%20
TM29PsychicPsychicSpecial90100%10
TM30Shadow BallGhostSpecial80100%15
TM32Double TeamNormalStatus15
TM42FacadeNormalPhysical70100%20
TM43Secret PowerNormalPhysical70100%20
TM44RestPsychicStatus5
TM45AttractNormalStatus100%15
TM46ThiefDarkPhysical60100%25
TM48Skill SwapPsychicStatus10
TM58EndureNormalStatus10
TM68Giga ImpactNormalPhysical15090%5
TM70FlashNormalStatus100%20
TM74Gyro BallSteelPhysical100%5
TM76Stealth RockRockStatus20
TM77Psych UpNormalStatus10
TM78CaptivateNormalStatus100%20
TM82Sleep TalkNormalStatus10
TM83Natural GiftNormalPhysical100%15
TM85Dream EaterPsychicSpecial100100%15
TM87SwaggerNormalStatus85%15
TM90SubstituteNormalStatus10
TM91Flash CannonSteelSpecial80100%10

Move tutor

MoveTypeCat.PowerAcc.PP
String ShotBugStatus95%40
SnoreNormalSpecial50100%15
UproarNormalSpecial90100%10
EndeavorNormalPhysical100%5
Signal BeamBugSpecial75100%15
Iron DefenseSteelStatus15
Sucker PunchDarkPhysical70100%5
Magnet RiseElectricStatus10
Gunk ShotPoisonPhysical12080%5
Iron HeadSteelPhysical80100%15
Bug BiteBugPhysical60100%20
Platinum13 level-up · 31 TM/HM · 9 tutor

Level-up

LvMoveTypeCat.PowerAcc.PP
1TackleNormalPhysical40100%35
10ProtectNormalStatus10
15Bug BiteBugPhysical60100%20
20Hidden PowerNormalSpecial60100%15
23ConfusionPsychicSpecial50100%25
26Mirror ShotSteelSpecial6585%10
29Metal SoundSteelStatus85%40
32PsybeamPsychicSpecial65100%20
35CaptivateNormalStatus100%20
38FlailNormalPhysical100%15
41AttractNormalStatus100%15
44PsychicPsychicSpecial90100%10
47Iron HeadSteelPhysical80100%15

TM & HM

TMMoveTypeCat.PowerAcc.PP
TM06ToxicPoisonStatus90%10
TM10Hidden PowerNormalSpecial60100%15
TM11Sunny DayFireStatus5
TM15Hyper BeamNormalSpecial15090%5
TM17ProtectNormalStatus10
TM18Rain DanceWaterStatus5
TM20SafeguardNormalStatus25
TM21FrustrationNormalPhysical100%20
TM27ReturnNormalPhysical100%20
TM29PsychicPsychicSpecial90100%10
TM30Shadow BallGhostSpecial80100%15
TM32Double TeamNormalStatus15
TM42FacadeNormalPhysical70100%20
TM43Secret PowerNormalPhysical70100%20
TM44RestPsychicStatus5
TM45AttractNormalStatus100%15
TM46ThiefDarkPhysical60100%25
TM48Skill SwapPsychicStatus10
TM58EndureNormalStatus10
TM68Giga ImpactNormalPhysical15090%5
TM70FlashNormalStatus100%20
TM74Gyro BallSteelPhysical100%5
TM76Stealth RockRockStatus20
TM77Psych UpNormalStatus10
TM78CaptivateNormalStatus100%20
TM82Sleep TalkNormalStatus10
TM83Natural GiftNormalPhysical100%15
TM85Dream EaterPsychicSpecial100100%15
TM87SwaggerNormalStatus85%15
TM90SubstituteNormalStatus10
TM91Flash CannonSteelSpecial80100%10

Move tutor

MoveTypeCat.PowerAcc.PP
SnoreNormalSpecial50100%15
UproarNormalSpecial90100%10
EndeavorNormalPhysical100%5
Signal BeamBugSpecial75100%15
Iron DefenseSteelStatus15
Sucker PunchDarkPhysical70100%5
Magnet RiseElectricStatus10
Gunk ShotPoisonPhysical12080%5
Iron HeadSteelPhysical80100%15
Diamond / Pearl12 level-up · 31 TM/HM

Level-up

LvMoveTypeCat.PowerAcc.PP
1TackleNormalPhysical40100%35
10ProtectNormalStatus10
20Hidden PowerNormalSpecial60100%15
23ConfusionPsychicSpecial50100%25
26Mirror ShotSteelSpecial6585%10
29Metal SoundSteelStatus85%40
32PsybeamPsychicSpecial65100%20
35CaptivateNormalStatus100%20
38FlailNormalPhysical100%15
41AttractNormalStatus100%15
44PsychicPsychicSpecial90100%10
47Iron HeadSteelPhysical80100%15

TM & HM

TMMoveTypeCat.PowerAcc.PP
TM06ToxicPoisonStatus90%10
TM10Hidden PowerNormalSpecial60100%15
TM11Sunny DayFireStatus5
TM15Hyper BeamNormalSpecial15090%5
TM17ProtectNormalStatus10
TM18Rain DanceWaterStatus5
TM20SafeguardNormalStatus25
TM21FrustrationNormalPhysical100%20
TM27ReturnNormalPhysical100%20
TM29PsychicPsychicSpecial90100%10
TM30Shadow BallGhostSpecial80100%15
TM32Double TeamNormalStatus15
TM42FacadeNormalPhysical70100%20
TM43Secret PowerNormalPhysical70100%20
TM44RestPsychicStatus5
TM45AttractNormalStatus100%15
TM46ThiefDarkPhysical60100%25
TM48Skill SwapPsychicStatus10
TM58EndureNormalStatus10
TM68Giga ImpactNormalPhysical15090%5
TM70FlashNormalStatus100%20
TM74Gyro BallSteelPhysical100%5
TM76Stealth RockRockStatus20
TM77Psych UpNormalStatus10
TM78CaptivateNormalStatus100%20
TM82Sleep TalkNormalStatus10
TM83Natural GiftNormalPhysical100%15
TM85Dream EaterPsychicSpecial100100%15
TM87SwaggerNormalStatus85%15
TM90SubstituteNormalStatus10
TM91Flash CannonSteelSpecial80100%10

Where to find it in the official games

Not obtainable in the wild in any of the 16 official games this site covers. In those games it has to be evolved, traded or bred — or it belongs to a game whose data is not here yet.

Compare official Trash Wormadam with the ROM hacks →

In the 10 guides that include it

Changed in 9 of 10 guides: retyped in 9, stats in 9, abilities in 5.

Every ROM hack on this site that has Trash Wormadam, and what it did to it. Guides that changed something are first. Click one for that version's full page — locations, moveset and TMs.

GuideTypeTotalAbilities
UnboundChangedBugGrassBugSteel424
+10 Attack, +10 Defense, -10 Sp. Atk, -10 Sp. Def
Technician, Overcoat
+ Technician − Anticipation
Emerald RogueChangedBugGrassBugSteel424
+10 Attack, +10 Defense, -10 Sp. Atk, -10 Sp. Def
Anticipation, Overcoat
Radical RedChangedBugGrassBugSteel424
+10 Defense, -10 Sp. Def
Overcoat
− Anticipation
Sword and Shield Ultimate PlusChangedBugGrassBugSteel424
+10 Attack, +10 Defense, -10 Sp. Atk, -10 Sp. Def
Anticipation, Overcoat
Elite ReduxChangedBugGrassBugSteel468 +44
+24 HP, +10 Attack, +20 Defense, -10 Sp. Atk
Anticipation, Weak Armor, Overcoat
Inclement EmeraldChangedBugGrassBugSteel424
+10 Attack, +10 Defense, -10 Sp. Atk, -10 Sp. Def
Anticipation, Overcoat
Pokémon Emerald ImperiumChangedBugGrassBugSteel424
+10 Defense, -10 Sp. Def
Overcoat
− Anticipation
Pokémon Platinum KaizoChangedBugGrassBugSteel424
+10 Attack, +10 Defense, -10 Sp. Atk, -10 Sp. Def
Snow Cloak
+ Snow Cloak − Anticipation, Overcoat
Pokémon SoothingSilverChangedBugGrassBugSteel424
+10 Attack, +10 Defense, -10 Sp. Atk, -10 Sp. Def
Anticipation, Heatproof
+ Heatproof − Overcoat
Pokémon R.O.W.EUnchangedBugSteel424Anticipation, Overcoat

Pokédex entries

What each game says about it, in the games' own words.

DiamondWhen BURMY evolved, its cloak became a part of this Pokémon’s body. The cloak is never shed.
Pearl / X / Omega RubyIts appearance changes depending on where it evolved. The materials on hand become a part of its body.
Platinum / Black / White / Black 2 / White 2When evolving, its body takes in surrounding materials. As a result, there are many body variations.
HeartGold / SoulSilverIt is said that a WORMADAM that evolves on a cold day will have a thicker cloak.
Y / Alpha SapphireWhen Burmy evolved, its cloak became a part of this Pokémon’s body. The cloak is never shed.

Names in other languages

Japaneseミノマダム
Japanese (Rōmaji)Minomadam
GermanBurmadame
FrenchCheniselle
SpanishWormadam
ItalianWormadam
Korean도롱마담
Chinese (Simplified)结草贵妇
Chinese (Traditional)結草貴婦

Official data here is present-day reference data from PokéAPI, not a snapshot of any one game's era — the Fairy type and hidden abilities arrived partway through the series, so a difference against an older game can belong to the series rather than to that ROM hack.