Reversal Mountain (unknown area 48)
20%- Method
- Walking in dark grass
- Level Range
- Lv. 35
- Conditions
- Any

GRUMPIG uses the black pearls on its body to amplify its psychic power waves for gaining total control over its foe. When this POKéMON uses its special power, its snorting breath grows labored.
Understanding damage taken from different types is crucial for battles. Plan your team accordingly!
Tip: Build your team with Pokémon that cover each other's weaknesses!
0.9 m
71.5 kg
Halves damage from fire and ice moves.
Prevents confusion.
Makes the Pokémon eat any held Berry triggered by low HP below 1/2 its max HP.
5,100
Hatch Counter: 20
60
Higher values mean easier to catch
70
Initial friendship level
Fast
Experience points needed to level up
Core species facts, alternate varieties, and Pokédex placements at a glance.
Battle-ready training facts pulled from EV yield, growth curve, and wild held item data.
\frac{4x^3}{5}Versions: Black 2, White 2
Versions: Diamond, Pearl, Platinum, Heartgold

Where this Pokémon appears in supported games, including method, level range, and encounter conditions.
High-signal moves surfaced from learnsets and move metadata, grouped by battle purpose.
Reliable same-type attacks that match this Pokémon's typing.
Learned at Lv. 55
Black White
Has a 10% chance to lower the target’s Special Defense by one stage.
Learned at Lv. 42
X Y
Inflicts damage based on the target’s Defense, not Special Defense.
Off-type attacks that expand what this Pokémon can threaten.
TM/TR Moves
Scarlet Violet
Has a 30% chance to paralyze the target.
Learned at Lv. 68
Black White
User bounces high into the air, dodging all attacks, and hits next turn.
TM/TR Moves
Scarlet Violet
Support, disruption, and setup tools worth noticing.
Learned at Lv. 32
Omega Ruby Alpha Sapphire
Confuses the target.
TM/TR Moves
Xd
Target falls in love if it has the opposite gender, and has a 50% chance to refuse attacking the user.
TM/TR Moves
Scarlet Violet
Has a 30% chance to paralyze the target.
Learned at Lv. 68
Black White
User bounces high into the air, dodging all attacks, and hits next turn.