Pokédex · IX (Paldea)

Iron Boulder#1022

Strong point: Speed — higher than 97% of species. Overall it is one of the stronger species — above 94% of the Pokédex. It does not evolve: it does not come from anything and does not change into anything. On defense it has 7 weaknesses and 5 resistances. It cannot breed — it has no Egg Group, so you will not get it from breeding. Very hard to catch — bring plenty of Poké Balls and something that puts it to sleep or paralyzes it.

Iron Boulder
Shiny version
Rock Psychic
Height: 1.5 m (4′11″) Weight: 162.5 kg (358.3 lbs)

Base stats

HP
90
78%
Atk
120
88%
Def
80
62%
SpA
68
54%
SpD
108
91%
Spe
124
97%
TOTAL
590
94%

Last column: what percentage of 1084 species and regional forms have a lower value. Strong point: Speed.

A nature can improve this entry further: its boost hits hardest on Speed, the stat in which this species already leads. Which nature does that — see the list of natures.

Which nature to choose

It hits physically: its Attack (120) is 52 points higher than its Sp. Atk. So the drop hits a stat the set usually does not use at all.

  • Jolly +Spe · −SpA Its Speed is higher than 97% of species — ten percent more lifts it past some of the benchmarks that decide who moves first.
  • Adamant +Atk · −SpA If you already outspeed what you want to outspeed, those ten percent are better spent on hitting power.
  • Hidden Power and Weather Ball still deal damage based on Sp. Atk. If either of them is going into the set, lowering Sp. Atk is no longer free.

A conclusion drawn from base stats alone — a specific moveset can reverse it. All 25 natures.

Regional numbers 1

The header shows the national number. Inside the game the Pokédex counts from the beginning — below is the number you will see in your version.

Blueberry Academy #239 Scarlet / Violet , Scarlet/Violet: The Indigo Disk

Abilities

  • Quark Drive Raises highest stat on Electric Terrain, or if holding Booster Energy.

How players use it

Data from 574,541 ranked battles on Smogon (Gen 9 OU, 2026-09). These are not numbers from the game — they are player habits.

Rank 91 among 309 Pokémon in use — it is on 0.66% of teams.

Tera Type Ground 27.9% Rock 26.8% Fighting 25% Flying 9.5% Dark 4.8% Grass 2.5%
EV spreads Jolly · 252 Atk / 252 Spe / 4 SpD 52.3% Jolly · 252 Atk / 252 Spe / 4 HP 23.9% Jolly · 252 Atk / 252 Spe / 4 Def 19.4% Jolly · 252 Atk / 232 Spe / 24 Def 1.5% Jolly · 252 Atk / 252 Spe 1.1%

Each row is a separate distribution, not a single set: the most common item and the most common move do not have to appear on the same Pokémon.

Pokédex entry

It resembles a Pokémon described in a dubious magazine as a Terrakion that had been modified by an evil organization.

Egg Group: Undiscovered Gender: Genderless Catch difficulty: very hard (10/255) Base friendship: 0/255 Base EXP: 295
Evolution line

Resistances and weaknesses

Type chart →

How much damage Iron Boulder takes when it is hit by a move of each type. The multipliers of both its types are already combined here.

Weak to Water ×2 Grass ×2 Ground ×2 Bug ×2 Ghost ×2 Dark ×2 Steel ×2
Resistant to Normal ×½ Fire ×½ Poison ×½ Flying ×½ Psychic ×½

Variant gallery

The gallery shows only the appearance variants that exist for this Pokémon. Every image shows the same character and differs in source — a Pokémon HOME render or a pixel sprite — and in coloring, regular or shiny.

Iron Boulder — small pixel sprite in its regular coloring
Pixel sprite
Iron Boulder — small pixel sprite in its shiny coloring
Shiny pixel sprite

Iron Boulder does not breed. You cannot get an Egg from it — this is how the games treat almost all Legendary and Mythical species.

Below are the moves learned by leveling up. The rest (38 via TM/TR) are on the full list.

Lv. Move Type Cat. Power Acc. PP
1 Electric Terrain Electric Status — — 10
1 Horn Attack Normal Physical 65 100% 25
1 Leer Normal Status — 100% 30
1 Rock Throw Rock Physical 50 90% 15
7 Quick Attack Normal Physical 40 100% 30
14 Slash Normal Physical 70 100% 20
21 Agility Psychic Status — — 30
28 Psycho Cut Psychic Physical 70 100% 20
35 Counter Fighting Physical — 100% 20
42 Rock Tomb Rock Physical 60 95% 15
49 Sacred Sword Fighting Physical 90 100% 15
56 Mighty Cleave Rock Physical 95 100% 5
63 Swords Dance Normal Status — — 20
70 Megahorn Bug Physical 120 85% 10
77 Quick Guard Fighting Status — — 15
84 Stone Edge Rock Physical 100 80% 5
91 Giga Impact Normal Physical 150 90% 5