Special
Trick Room
395Low
40Very Slow
DTier

Gloom sits in the middle of its evolution line — stronger than Oddish but not yet at full power. Most trainers push through to Vileplume as fast as possible. Known as the Weed Pokemon. Flexible enough to run physical or special sets.

Nothing fancy in Gloom's spread. It leans mixed with Sp. Atk out front. And you'll get 2 Sp. Atk EVs per KO for it. Follows a 1.06M XP medium-slow curve.

Base Stats
395Avg
HP60
C
Attack65
C
Defense70
C
Sp. Atk85
C
Sp. Def75
C
Speed40
D
Total395
Low <60
Avg 60-89
High 90-149
Top 150+
EV YieldDefeating Gloom yields +2 SpA
HPAtkDefSpA+2SpDSpe
Details
Catch120Moderate•Medium Slow1.06M XP•0.8m / 2'07"•8.6kg / 19 lbs•138Base XP
Pokedex Entries

Smells incredibly foul! However, around 1 out of 1,000 people enjoy sniffing its nose-bending stink.

Yellow

Gloom Weakness

Fragile

Gloom is weak to Bug, Fire, Ice, Flying, and Psychic-type moves. Watch out for Bug attacks, those deal 4x damage. The Grass/Poison typing picks up 4 resistances to work with.

Gen I Type Chart
  • Only 15 types exist — Dark, Steel, and Fairy are absent
  • Ghost has no effect on Psychic (a known bug, fixed in Gen II)
  • Special stat governs both offense and defense — no Sp.Atk / Sp.Def split
4xCriticali
Bug
2xWeaki
FireIceFlyingPsychic
½xResisti
WaterElectricFighting
¼xResisti
Grass
0xImmunei
None
STAB (5)i
WaterGroundRockGrassBug
5Weak
4Resist
0Immune
Scorei-7
SpikesGrounded — up to 25%
Toxic SpikesAbsorbs on switch
4x Bug — U-turn, Bug Buzz, Megahorn
Abilities
ChlorophyllDoubles Speed during strong sunlight.
StenchHAHas a 10% chance of making target Pokémon flinch with each hit.

Gloom sits between Oddish and Bellossom in this 4-stage chain. A Grass/Poison type at 395 stats that can't breed. HP has grown the most so far (+15), but there's still another 95 stats to gain in the final evolution.

How to Evolve

3 Forms
Oddish
#043Oddish
21
Level 21
Gloom
#044Gloom
Leaf Stone
Vileplume
#045Vileplume
Stat Comparison 3 Stages
Oddish
GrassPoison
Gloom
GrassPoison
Vileplume
GrassPoison
HP
45
60+15
75+15
ATK
50
65+15
80+15
DEF
55
70+15
85+15
SP.ATK
75
85+10
110+25
SP.DEF
65
75+10
90+15
SPE
30
40+10
50+10
BST
320D-Tier
395D-Tier+75
490B-Tier+95
ROLE
Balanced
Trick Room
Attacker
TYPE
Special
Special
Special
Breeding not available · Introduced in Gen 2

Best Build

Gen 1 build content has limited support (no abilities, held items, or natures).

Try selecting a different game/generation filter, or check back later.

Most of Gloom's flexibility comes from TMs. Same-type output runs through Petal Dance and Solar Beam, but Normal and the rest of the TM pool push it from predictable to genuinely threatening.

Level-Up Moves

Lv 1
Absorb
2010020Grass
Lv 1
Poison Powder
—7535Poison
Lv 1
Stun Spore
—7530Grass
Lv 15
Poison Powder
—7535Poison
Lv 17
Stun Spore
—7530Grass
Lv 19
Sleep Powder
—7515Grass
Lv 28
Acid
4010030Poison
Lv 38
Petal Dance
12010020Grass
Lv 52
Solar Beam
12010010Grass

TM Moves

Src
TM34
Bide+1
——10Normal
HM01
Cut
509530Normal
TM32
Double Team
——15Normal
TM10
Double-Edge
12010015Normal
TM21
Mega Drain
4010010Grass
TM31
Mimic
——10Normal
TM20
Rage
2010020Normal
TM33
Reflect
——20Psychic
TM44
Rest
——10Psychic
TM22
Solar Beam
12010010Grass
TM50
Substitute
——10Normal
TM03
Swords Dance
——30Normal
TM09
Take Down
908520Normal
TM06
Toxic
—9010Poison

Egg Moves

Gloom doesn't have any Egg moves

Tutor Moves

Gloom can't learn any Tutor moves

6 encounter spots for Gloom at decent spawn rates starting from mid-game routes. Best and Earliest sort options below help narrow down your approach based on odds vs. Accessibility.

Where To Catch Gloom in Yellow

To get Gloom, start by catching Oddish through walking encounters at Lv. 12-58. The chain covers 2 catchable stages before reaching the final form.

  1. Oddish
    Step 1Catch Oddish
    Route 24
    GrassLv.12-14CommonEarlyRoute
    EFFORTLESS
    Route 25
    GrassLv.12-14CommonEarlyRoute
    EFFORTLESS
    Route 12
    GrassLv.25-27CommonMidRoute
    EFFORTLESS
    Route 13
    GrassLv.25-27CommonMidRoute
    EFFORTLESS
    Route 14
    GrassLv.26-28CommonMidRoute
    EFFORTLESS
    Route 15
    GrassLv.26-28CommonMidRoute
    EFFORTLESS
  2. Gloom
    Step 2Gloom ✓
    Route 12
    GrassLv.29RareMidRoute
    CHALLENGING
    Route 13
    GrassLv.29RareMidRoute
    CHALLENGING
    Route 14
    GrassLv.30RareMidRoute
    CHALLENGING
    Route 15
    GrassLv.30RareMidRoute
    CHALLENGING
    Cerulean Cave - 1F
    GrassLv.55UncommonPostCave
    EASY
    Cerulean Cave - 2F
    GrassLv.58RarePostCave
    CHALLENGING
    or evolve from Oddish (Step 1)

  • At 395 BST, Gloom is firmly in pre-evolution territory. Evolve it into Vileplume before bringing it to any serious fight.

  • Gloom's biggest threats include Scyther (Bug), Charizard (Fire), and Cloyster (Ice), all carrying super-effective STAB moves. Scyther is the most dangerous since Bug moves deal 4x damage. Flying and Psychic-type attackers are also a problem. With 5 weakness types, most competitive teams carry at least one counter. At base 40 Speed, Gloom won't outrun any of these threats so switching to a resist is usually the safer play.

  • Oddish evolves into Gloom at level 21. Gloom can evolve into Vileplume and Bellossom depending on the method. Gloom is a middle-stage evolution in the Oddish line.

  • Gloom is a special attacker with base 85 Sp. Atk. Enough bulk to take a hit or two, too. But the speed tells the real story — base 40 Speed is low. Priority moves or Trick Room are the way to go. Fits the trick room role.

  • Gloom appears in 20 games, including Yellow, Red & Blue, and Gold & Silver.

Present since Red & Blue, Gloom appears in 20 games spanning 9 generations. Gen 1 originals like Gloom have the longest track record of availability in the series.