Thank you for your interest in having the Marriland Pokédex updated to support Pokémon Scarlet & Violet! This has been something that I've been wanting to update for awhile, and it is my current project to implement support for the new games and The Teal Mask DLC. Thank you for your patience as I work on this over the coming week or two!
Pokédex Page for Yamper
This is the Marriland Pokédex page for Yamper, showing its information and moves in Pokémon Sword & Shield. Yamper is not available in Pokémon Brilliant Diamond or Shining Pearl and cannot be used in or sent to those versions.
Top Info
Moves
Stats
Location
Flavor
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Height: 1'0" (0.3m) Weight: 29.8 lbs. (13.5 kg) Gender Ratio: 50%50% Egg Groups: Field EXP At Lv. 100: 800,000 EV Yield: 1 HP Base EXP: 54 Catch Rate: 255
Yamper's Abilities
Here are what abilities Yamper can possibly have, along with their effects. Ball Fetch Picks up the first Poké Ball that failed to catch a Pokémon in the battle. Rattled Raises Yamper's Speed by one stage after each hit it takes from a Bug-, Ghost-, or Dark-type move.
Weaknesses & Resistances
Below is a list of what Yamper's weakness and resistance is to various types. 2× GROUND ½ ELECTRICFLYINGSTEEL
Yamper's Evolution Line
Below you'll find a list of all Pokémon Yamper evolves from or into, along with its evolution method. Yamper starting form Boltund at level 25
Yamper's Moves in Sword & Shield
Enable move tooltips? Below is a list of all of the moves that Yamper can learn, along with what level it learns the move, the TM or TR number, and what egg moves it can learn, if any. Hover over a move (desktop/laptop) or click the ? button next to the move (mobile/tablet) to find out more about the move.
Level Up Moves
Here are all of the moves Yamper learns via level up. Anything marked "Evo." means it learns it upon evolving. If the level is 1, it can be relearned at a Pokémon Center.
Lv.
Move
Type
Category
Power
Acc.%
PP
Target
Info
1
TackleDamages the target.
NORMAL
40
100%
35
One Target
?
1
Tail WhipLowers all nearby enemies' Defense by one stage.
NORMAL
--
100%
30
Nearby Enemies
?
5
NuzzleHas a 100% chance to paralyze the target.
ELECTRIC
20
100%
20
One Target
?
10
BiteHas a 30% chance of causing the target to flinch.
DARK
60
100%
25
One Target
?
15
RoarForces the foe to switch out, or ends wild battles.
NORMAL
--
--
20
One Target
?
20
SparkHas a 30% chance to paralyze the target.
ELECTRIC
65
100%
20
One Target
?
26
CharmLowers the target's Attack by two stages.
FAIRY
--
100%
20
One Target
?
30
Crunch20% chance of lowering the target's Defense by one stage.
DARK
80
100%
15
One Target
?
35
ChargeRaises Yamper's Special Defense by one stage and doubles the power of its Electric moves next turn.
ELECTRIC
--
--
20
User
?
40
Wild ChargeYamper takes 25% of Wild Charge's damage as recoil damage.
ELECTRIC
90
100%
15
One Target
?
45
Play Rough10% chance of lowering the target's Attack by one stage.
FAIRY
90
90%
10
One Target
?
TM Moves
Here are all of the moves that Yamper can learn via TM (Technical Machine). These moves can be taught an unlimited number of times once the TM is obtained.
TM
Move
Type
Category
Power
Acc.%
PP
Target
Info
TM14
Thunder WaveParalyzes the target.
ELECTRIC
--
90%
20
One Target
?
TM15
DigCan't be hit on the first turn, attacks on the second turn.
GROUND
80
100%
10
One Target
?
TM21
RestYamper restores its HP to full and falls asleep for two turns.
PSYCHIC
--
--
10
User
?
TM24
SnoreCan only be used while asleep. 30% chance of making the target flinch.
NORMAL
50
100%
15
One Target
?
TM25
ProtectProtects Yamper from attacks for a turn. Low chance of working on consecutive turns.
NORMAL
--
--
10
User
?
TM29
CharmLowers the target's Attack by two stages.
FAIRY
--
100%
20
One Target
?
TM31
AttractInfatuates Pokémon of the opposite gender.
NORMAL
--
100%
15
One Target
?
TM39
FacadeDoes double damage if Yamper is poisoned, burned, or paralyzed.
NORMAL
70
100%
20
One Target
?
TM40
SwiftDoesn't miss all nearby enemies.
NORMAL
60
--
20
Nearby Enemies
?
TM41
Helping HandIncreases the power of ally Pokémon's moves for the rest of the turn.
NORMAL
--
--
20
Ally
?
TM66
Thunder FangHas a 10% chance to paralyze the target. Has a separate 10% chance to make the target flinch.
ELECTRIC
65
95%
15
One Target
?
TM68
Fire FangHas a 10% chance to burn the target. Has a separate 10% chance to make the target flinch.
FIRE
65
95%
15
One Target
?
TM76
RoundDeals double damage if Round has already been used and causes any other Pokémon using Round to use it immediately afterward.
NORMAL
60
100%
15
One Target
?
TM80
Volt SwitchForces Yamper to switch out after dealing damage.
ELECTRIC
70
100%
20
One Target
?
TM85
Snarl100% chance of lowering all nearby enemies' Sp. Atk by one stage.
DARK
55
95%
15
Nearby Enemies
?
TR Moves
Here are all of the moves that Yamper can learn via TR (Technical Record). These moves can be taught only once per TR, but TRs can be obtained in the Wild Area and other locations.
TR
Move
Type
Category
Power
Acc.%
PP
Target
Info
TR08
ThunderboltHas a 10% chance to paralyze the target.
ELECTRIC
90
100%
15
One Target
?
TR09
Thunder30% chance of paralyzing the target. 100% accuracy in the rain and 50% accuracy in sunny weather.
ELECTRIC
110
70%
10
One Target
?
TR20
SubstituteCosts 25% of Yamper's max HP. Sets up a Substitute to block effects and damage.
NORMAL
--
--
10
User
?
TR26
EndureWill survive any hit with at least 1 HP left this turn. 50% chance of working on consecutive turns.
NORMAL
--
--
10
User
?
TR27
Sleep TalkCan only be used while asleep. Uses one of Yamper's moves at random.
NORMAL
--
--
10
User
?
TR32
Crunch20% chance of lowering the target's Defense by one stage.
DARK
80
100%
15
One Target
?
TR35
UproarLose control for up to 5 turns. While the Uproar is active, no Pokémon can be asleep.
NORMAL
90
100%
10
Random Enemy
?
TR80
Electro BallPower ranges from 60–150 based on Yamper's Speed vs. the target's.
ELECTRIC
varies
100%
10
One Target
?
TR86
Wild ChargeYamper takes 25% of Wild Charge's damage as recoil damage.
ELECTRIC
90
100%
15
One Target
?
TR90
Play Rough10% chance of lowering the target's Attack by one stage.
FAIRY
90
90%
10
One Target
?
Egg Moves
Here are all of the moves that Yamper can learn as Egg Moves. In the case of evolved Pokémon, it shows what Egg Moves it can learn in its lowest evolutionary stage. Click the word EGG to find compatible breeding Pokémon to get that Egg Move onto Yamper.
Move
Type
Category
Power
Acc.%
PP
Target
Info
EGG
Double-EdgeYamper takes 33% of Double-Edge's damage as recoil damage.
NORMAL
120
100%
15
One Target
?
EGG
Sand AttackLowers the target's Accuracy by one stage.
GROUND
--
100%
15
One Target
?
EGG
Flame ChargeRaises Yamper's Speed by one stage.
FIRE
50
100%
20
One Target
?
EGG
DischargeHas a 30% chance to paralyze all nearby Pokémon.
ELECTRIC
80
100%
15
All But Self
?
EGG
HowlRaises all allies' Attack by one stage.
NORMAL
--
--
40
All Allies
?
Move Tutor Moves
Here are all of the moves that Yamper can learn from Move Tutors. Most of these require the Expansion Pass and can be found in the Isle of Armor's Dojo, costing some Armorite Ore to teach. However, there are a few moves that can be taught aside from this.
Move
Type
Category
Power
Acc.%
PP
Target
Info
TUTOR
Rising VoltageIf used during Electric Terrain, Rising Voltage does double damage.
ELECTRIC
70
100%
20
One Target
?
Yamper's Detailed Stats
Below you'll find a more detailed table containing Yamper's calculated stats, which are the stats that you actually see displayed in game. These are affected by a variety of things, such as level, Effort Values (EVs), Individual Values (IVs), and Yamper's Nature.By default, the stats you see in the table below show four different possibilities, all assuming Yamper is level 100: its stats with 0 EVs, 252+ (max) EVs, 0 IVs, and 31 (max) IVs. Nature is not shown by default, so its maximum is 10% higher than shown here, and minium 10% lower.
If you're looking for where to find Yamper, you'll find the various methods listed down below, along with any notes or special locations. This should help you figure out how to get Yamper in Pokémon Sword & Shield. (Currently this does not show most "strong" static encounters or Max Raid Battles.)
Yamper in the Wild
Galar Route 2
Overworld Encounters
Any Weather
5%
Lv. 5-7
Galar Route 2 (Secret Area)
Overworld Encounters
Any Weather
5%
Lv. 40-43
Galar Route 4
Overworld Encounters
Any Weather
20%
Lv. 14-16
Motostoke Riverbank
Overworld Encounters
Norm.
Over.
Rain
Strm.
Sun
Snow
Bliz.
Sand.
Fog
--
--
--
40%
--
--
--
--
--
Lv. 26-28
Stony Wilderness
Overworld Encounters
Norm.
Over.
Rain
Strm.
Sun
Snow
Bliz.
Sand.
Fog
--
--
--
35%
--
--
--
--
--
Lv. 28-30
Stony Wilderness (Brown Grass)
Overworld Encounters
Norm.
Over.
Rain
Strm.
Sun
Snow
Bliz.
Sand.
Fog
--
--
--
45%
--
--
--
--
--
Lv. 28-30
Giant's Mirror
Overworld Encounters
Norm.
Over.
Rain
Strm.
Sun
Snow
Bliz.
Sand.
Fog
--
--
--
10%
--
--
--
--
--
Lv. 28-30
Ballimere Lake
Random Encounters
Norm.
Over.
Rain
Strm.
Sun
Snow
Bliz.
Sand.
Fog
19%
32%
19%
19%
19%
24%
--
--
24%
Lv. 60-65
Lv. 60-65
Lv. 60-65
Lv. 60-65
Lv. 60-65
Lv. 60-65
Lv. 60-65
Pokédex Entries for Yamper
Generation 8 Pokédex Entries
Sword This Pokémon is very popular as a herding dog in the Galar region. As it runs, it generates electricity from the base of its tail. Shield This gluttonous Pokémon only assists people with their work because it wants treats. As it runs, it crackles with electricity.
Pokédex Page for Yamper 
50%50% 
Egg Groups: Field EXP At Lv. 100: 800,000 EV Yield: 1 HP Base EXP: 54 Catch Rate: 255 
Boltund at level 25 
Norm.
Over.
Rain
Strm.
Sun
Snow
Bliz.
Sand.
Fog