Fighting · Physical move · Gen 4
Hammer Arm
Hammer Arm is a Fighting-type physical move introduced in Generation 4. It has 100 base power and 90% accuracy, with 10 PP (16 with PP Max). 62 Pokémon and forms can learn it.
Type
Fighting
Category
Physical
Power
100
Accuracy
90%
PP
10 (max 16)
Priority
0
Effect
Lowers the user's Speed by 1. Lowers the user's Speed by 1 stage.
- Targets
- One adjacent Pokémon
- Properties
- Makes contact · Punch move (Iron Fist)
- Scarlet & Violet
- Usable (43 Pokémon)
- Pokémon Champions
- Usable (16 Pokémon)
- Legends: Z-A
- Not usable
Type matchups as a Fighting attack
2× vsNormalIceRockDarkSteel
½× vsPoisonFlyingPsychicBugFairy
0× vsGhost
Pokémon that learn Hammer Arm
62 Pokémon and forms (Mega Evolutions share their base form's moves). ✓ = can learn it in that game by any method; “Gens” lists every main-series generation it could be learned in.
| Pokémon | Type | Champions | S/V | Z-A | Gens |
|---|---|---|---|---|---|
 Geodude | Rock/Ground | ✓ | 4–7, 9 | ||
 Graveler | Rock/Ground | ✓ | 4–7, 9 | ||
 Golem | Rock/Ground | ✓ | 4–7, 9 | ||
 Krabby | Water | 8 | |||
 Kingler | Water | 8 | |||
 Lickitung | Normal | 4–8 | |||
 Rhydon | Ground/Rock | ✓ | 4–9 | ||
 Kangaskhan | Normal | ✓ | 4–8 | ||
 Electabuzz | Electric | ✓ | 5–9 | ||
 Snorlax | Normal | ✓ | ✓ | 8–9 | |
 Sudowoodo | Rock | ✓ | 4–9 | ||
 Ursaring | Normal | ✓ | 4–7, 9 | ||
 Elekid | Electric | ✓ | 5–9 | ||
 Miltank | Normal | 4–8 | |||
 Swampert | Water/Ground | ✓ | ✓ | 4–9 | |
 Slakoth | Normal | ✓ | 4–7, 9 | ||
 Vigoroth | Normal | ✓ | 4–7, 9 | ||
 Slaking | Normal | ✓ | 4–7, 9 | ||
 Whismur | Normal | 4–8 | |||
 Loudred | Normal | 4–8 | |||
 Exploud | Normal | 4–8 | |||
 Metagross | Steel/Psychic | ✓ | ✓ | 4–9 | |
 Regirock | Rock | ✓ | 4–9 | ||
 Regice | Ice | ✓ | 4–9 | ||
 Registeel | Steel | ✓ | 4–9 | ||
 Groudon | Ground | ✓ | 4–9 | ||
 Cranidos | Rock | ✓ | 4–7, 9 | ||
 Rampardos | Rock | ✓ | ✓ | 4–7, 9 | |
 Lickilicky | Normal | 4–8 | |||
 Rhyperior | Ground/Rock | ✓ | ✓ | 4–9 | |
 Electivire | Electric | ✓ | 5–9 | ||
 Regigigas | Normal | ✓ | 8–9 | ||
 Emboar | Fire/Fighting | ✓ | ✓ | 5–7, 9 | |
 Timburr | Fighting | ✓ | 5–9 | ||
 Gurdurr | Fighting | ✓ | 5–9 | ||
 Conkeldurr | Fighting | ✓ | ✓ | 5–9 | |
 Darumaka | Fire | 5–8 | |||
 Galarian Darumaka | Ice | 8 | |||
 Darmanitan | Fire | 5–8 | |||
 Galarian Darmanitan | Ice | 8 | |||
 Reuniclus | Psychic | ✓ | ✓ | 8–9 | |
 Golett | Ground/Ghost | ✓ | 5–9 | ||
 Golurk | Ground/Ghost | ✓ | ✓ | 5–9 | |
 Tornadus | Flying | ✓ | 5–9 | ||
 Thundurus | Electric/Flying | ✓ | 5–9 | ||
 Landorus | Ground/Flying | ✓ | 5–9 | ||
 Chesnaught | Grass/Fighting | ✓ | ✓ | 6–7, 9 | |
 Diggersby | Normal/Ground | ✓ | 6–8 | ||
 Pangoro | Fighting/Dark | ✓ | 6–8 | ||
 Stufful | Normal/Fighting | 7–8 | |||
 Bewear | Normal/Fighting | 7–8 | |||
 Buzzwole | Bug/Fighting | 7–8 | |||
 Guzzlord | Dark/Dragon | 7–8 | |||
 Grookey | Grass | ✓ | 8–9 | ||
 Thwackey | Grass | ✓ | 8–9 | ||
 Rillaboom | Grass | ✓ | ✓ | 8–9 | |
 Grimmsnarl | Dark/Fairy | ✓ | ✓ | 8–9 | |
 Zarude | Dark/Grass | ✓ | 8–9 | ||
 Regidrago | Dragon | ✓ | 8–9 | ||
 Ursaluna | Ground/Normal | ✓ | 4–7, 9 | ||
 Ursaluna-Bloodmoon | Ground/Normal | ✓ | 9 | ||
 Garganacl | Rock | ✓ | ✓ | 9 |
Hammer Arm FAQ
What does Hammer Arm do?
Hammer Arm is a Fighting-type physical move with 100 power. Lowers the user's Speed by 1 stage.
Which Pokémon can learn Hammer Arm?
62 Pokémon and forms can learn Hammer Arm in at least one game: 43 in Scarlet & Violet, 16 in Pokémon Champions and 0 in Legends: Z-A. Examples: Geodude, Graveler, Golem, Krabby, Kingler and Lickitung.
Is Hammer Arm in Pokémon Champions?
Yes — 16 Pokémon can use Hammer Arm in Pokémon Champions, with the same numbers as in Scarlet & Violet.
What is Hammer Arm super effective against?
As a Fighting-type attack, Hammer Arm is super effective against Normal, Ice, Rock, Dark and Steel, not very effective against Poison, Flying, Psychic, Bug and Fairy and has no effect on Ghost (unless its effect says otherwise).
Move data and effect text from Pokémon Showdown (MIT), generation from PokéAPI; learnsets for Gen 1–9, Pokémon Champions and Legends: Z-A from Showdown. Unofficial fan site.