That 4x Fire and Flying weakness is something every Wormadam user needs to plan around. Known as the Bagworm Pokemon. Can go either physical or special depending on the set.
Wormadam's built to absorb hits, not race for knockouts. Special bulk with Sp. Def doing the heavy lifting. And the medium-fast 1M XP curve means it won't take forever to bring up, worth 2 Sp. Def EVs.
It is said that a WORMADAM that evolves on a cold day will have a thicker cloak.
Wormadam Weakness
FragileFire, Flying, Ice, Poison, Bug, and Rock-type moves hit Wormadam for super-effective damage. Fire and Flying hits land at 4x, so they're the biggest threat. The Bug/Grass typing picks up 5 resistances to work with.
- Fairy type does not exist — Dragon has fewer checks
- Physical / Special split now per-move (introduced Gen IV)
Wormadam is what Burmy becomes. Breed it for Burmy eggs (quick to hatch). A decent partner pool for breeding via one egg group. Eggs are quick to hatch. The evolution from Burmy pushed Wormadam to 424 total stats. Sp.Def saw the largest single gain at +60.
How to Evolve
Start with max HP and Sp. Def EVs. Calm nature gives Wormadam the right special wall lean, Leftovers adds passive recovery each turn, and Anticipation works in the background. Signalbeam is the main damage option.
Best Build
Best Wormadam Moveset
- Signal Beam
- Giga Drain
- Psychic
- Hidden Power Water
Recommended Teammates
The level-up pool is slim, so TMs matter here. Wormadam's Normal and Psychic coverage and more all comes from technical machines, built on top of Leaf Storm and Solar Beam for same-type damage. Psychic and Leaf Storm are the payoff moves.
Level-Up Moves
TM Moves
Egg Moves
Tutor Moves
You're catching Burmy first, not Wormadam. Burmy appears but it's a rare spawn in the encounters below. The step cards map the full 2-stage line with evolution methods between each stage.
How to Obtain Wormadam in HeartGold & SoulSilver
Step 1Catch BurmyHARDRoute 38SoulSilverHeadbutting special treesLv.18-25LimitedMidRoutePost-gameHARDRoute 38HeartGoldHeadbutting special treesLv.18-25LimitedMidRoutePost-game
Step 2Wormadam ✓
Wormadam brings 424 BST to the table. C-Tier on our list — a situational pick that fills a niche. That 105 base Sp. Def does the heavy lifting.
Watch for Arcanine (Fire), Aerodactyl (Flying), and Cloyster (Ice) when using Wormadam. They all hit it super-effectively with STAB. Arcanine is the most dangerous since Fire moves deal 4x damage. Poison, Bug, and Rock-type attackers are also a problem. With 6 weakness types, most competitive teams carry at least one counter. At base 36 Speed, Wormadam won't outrun any of these threats so switching to a resist is usually the safer play.
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Anticipation notifies all trainers upon entering battle if an opponent has a super-effective move, self destruct, explosion, or a one-hit KO move — that's the one you want on Wormadam. Overcoat is the hidden ability. Niche, but it has its uses.
Wormadam is a physical attacker with base 59 Attack. Enough bulk to take a hit or two, too. But the speed tells the real story — base 36 Speed is low. Priority moves or Trick Room are the way to go.
Wormadam appears in 11 games, including Platinum, HeartGold & SoulSilver, and Diamond & Pearl.
Debuting in Diamond & Pearl, Wormadam appears in 11 games across 6 generations. A reliable presence in a solid number of games, typically found through wild encounters.
- Gen IY
Yellow - Gen IRB

Red & Blue - Gen IIGS

Gold & Silver - Gen IIC
Crystal - Gen IIIRS

Ruby & Sapphire - Gen IIIFRLG

FireRed & LeafGreen - Gen IIIE
Emerald - Gen IVPt
Platinum - Gen IVHGSS

HeartGold & SoulSilver - Gen IVDPDebut

Diamond & Pearl - Gen VBW

Black & White - Gen VB2W2

Black 2 & White 2 - Gen VIXY

X & Y - Gen VIORAS

Omega Ruby & Alpha Sapphire - Gen VIIUSUM

Ultra Sun & Ultra Moon - Gen VIISM

Sun & Moon - Gen VIILGPE

Let's Go Pikachu & Eevee - Gen VIIISwSh

Sword & Shield - Gen VIIIPLA
Legends: Arceus - Gen VIIIBDSP

Brilliant Diamond & Shining Pearl - Gen IXSV

Scarlet & Violet - Gen IXLZA
Legends: Z-A