Mechanics changelog
150 moves have 212 changes between them; power moved most often, 106 rows
Power, accuracy, PP, effect chance, type and effect text, as PokéAPI records the value that applied before each version group changed it.
Main-series rules that PokéAPI records as past values, plus the ordinary type chart by era; default forms only.
By field
Generation VI rewrote the most moves, 81 rows
| Field | Rows | Raised | Lowered |
|---|---|---|---|
| Power | 106 | 76 | 26 |
| Accuracy | 42 | 35 | 5 |
| Pp | 36 | 12 | 24 |
| Effect Chance | 11 | 8 | 2 |
| Effect | 9 | ||
| Type | 8 |
Every row
212 rows, oldest generation first
| Gen | Move | Field | Before | After |
|---|---|---|---|---|
| II | Bite | effect chance | 10% | 30% |
| II | Bite | type | Normal | Dark |
| II | Blizzard | accuracy | 90% | 70% |
| II | Dig | power | 100 | 60 |
| II | Dizzy Punch | effect | Inflicts regular damage with no additional effect. | Has a chance to confuse the target. |
| II | Dizzy Punch | effect chance | 0% | 20% |
| II | Double-Edge | effect | User receives 1/4 the damage it inflicts in recoil. | User receives 1/3 the damage inflicted in recoil. |
| II | Double-Edge | power | 100 | 120 |
| II | Explosion | power | 170 | 250 |
| II | Fire Blast | effect chance | 30% | 10% |
| II | Gust | effect | Inflicts regular damage with no additional effect. | Inflicts regular damage and can hit Pokémon in the air. |
| II | Gust | type | Normal | Flying |
| II | Karate Chop | type | Normal | Fighting |
| II | Poison Sting | effect chance | 20% | 30% |
| II | Psychic | effect chance | 30% | 10% |
| II | Rock Slide | effect | Inflicts regular damage with no additional effect. | Has a chance to make the target flinch. |
| II | Rock Slide | effect chance | 0% | 30% |
| II | Rock Throw | accuracy | 65% | 90% |
| II | Sand Attack | type | Normal | Ground |
| II | Self-Destruct | power | 130 | 200 |
| II | Sky Attack | effect chance | 10% | 30% |
| II | Thunder | effect chance | 10% | 30% |
| II | Tri Attack | effect | Inflicts regular damage with no additional effect. | Has a chance to burn, freeze, or paralyze the target. |
| II | Tri Attack | effect chance | 0% | 20% |
| II | Whirlwind | accuracy | 85% | 100% |
| II | Wing Attack | power | 35 | 60 |
| III | Low Kick | accuracy | 90% | 100% |
| III | Low Kick | effect | Has a chance to make the target flinch. | Inflicts more damage to heavier targets, with a maximum of 120 power. |
| III | Low Kick | effect chance | 30% | None |
| III | Low Kick | power | 50 | None |
| III | Razor Wind | accuracy | 75% | 100% |
| IV | Absorb | pp | 20 | 25 |
| IV | Dig | power | 60 | 80 |
| IV | Disable | accuracy | 55% | 80% |
| IV | Dive | power | 60 | 80 |
| IV | Flash | accuracy | 70% | 100% |
| IV | Fly | power | 70 | 90 |
| IV | Giga Drain | pp | 5 | 10 |
| IV | High Jump Kick | power | 85 | 100 |
| IV | Hypnosis | accuracy | 60% | 70% |
| IV | Hypnosis | accuracy | 70% | 60% |
| IV | Jump Kick | power | 70 | 85 |
| IV | Leaf Blade | power | 70 | 90 |
| IV | Mega Drain | pp | 10 | 15 |
| IV | Outrage | power | 90 | 120 |
| IV | Petal Dance | power | 70 | 90 |
| IV | Recover | pp | 20 | 5 |
| IV | Rock Smash | power | 20 | 40 |
| IV | Stockpile | pp | 10 | 20 |
| IV | Vine Whip | pp | 10 | 15 |
| IV | Zap Cannon | power | 100 | 120 |
| V | Beat Up | power | 10 | None |
| V | Bind | accuracy | 75% | 85% |
| V | Bone Rush | accuracy | 80% | 90% |
| V | Bullet Seed | power | 10 | 25 |
| V | Clamp | accuracy | 75% | 85% |
| V | Clamp | pp | 10 | 15 |
| V | Cotton Spore | accuracy | 85% | 100% |
| V | Covet | power | 40 | 60 |
| V | Crabhammer | accuracy | 85% | 90% |
| V | Curse | type | Unknown | Ghost |
| V | Disable | accuracy | 80% | 100% |
| V | Doom Desire | accuracy | 85% | 100% |
| V | Doom Desire | power | 120 | 140 |
| V | Drain Punch | power | 60 | 75 |
| V | Drain Punch | pp | 5 | 10 |
| V | Feint | power | 50 | 30 |
| V | Fire Spin | accuracy | 70% | 85% |
| V | Fire Spin | power | 15 | 35 |
| V | Fury Cutter | power | 10 | 20 |
| V | Future Sight | accuracy | 90% | 100% |
| V | Future Sight | power | 80 | 100 |
| V | Future Sight | pp | 15 | 10 |
| V | Giga Drain | power | 60 | 75 |
| V | Glare | accuracy | 75% | 90% |
| V | Growth | effect | Raises the user’s Special Attack by one stage. | Raises the user’s Attack and Special Attack by one stage. |
| V | High Jump Kick | power | 100 | 130 |
| V | High Jump Kick | pp | 20 | 10 |
| V | Icicle Spear | power | 10 | 25 |
| V | Jump Kick | power | 85 | 100 |
| V | Jump Kick | pp | 25 | 10 |
| V | Last Resort | power | 130 | 140 |
| V | Magma Storm | accuracy | 70% | 75% |
| V | Me First | power | 0 | None |
| V | Mind Reader | pp | 40 | 5 |
| V | Outrage | pp | 15 | 10 |
| V | Petal Dance | power | 90 | 120 |
| V | Petal Dance | pp | 20 | 10 |
| V | Poison Gas | accuracy | 55% | 80% |
| V | Punishment | power | 60 | None |
| V | Rock Blast | accuracy | 80% | 90% |
| V | Sand Tomb | accuracy | 70% | 85% |
| V | Sand Tomb | power | 15 | 35 |
| V | Scary Face | accuracy | 90% | 100% |
| V | Tackle | accuracy | 95% | 100% |
| V | Tackle | power | 35 | 50 |
| V | Tail Glow | effect | Raises the user’s Special Attack by two stages. | Raises the user’s Special Attack by three stages. |
| V | Thrash | power | 90 | 120 |
| V | Thrash | pp | 20 | 10 |
| V | Toxic | accuracy | 85% | 90% |
| V | Uproar | power | 50 | 90 |
| V | Whirlpool | accuracy | 70% | 85% |
| V | Whirlpool | power | 15 | 35 |
| V | Wrap | accuracy | 85% | 90% |
| VI | Acid Armor | pp | 40 | 20 |
| VI | Air Cutter | power | 55 | 60 |
| VI | Air Slash | pp | 20 | 15 |
| VI | Assurance | power | 50 | 60 |
| VI | Aura Sphere | power | 90 | 80 |
| VI | Barrier | pp | 30 | 20 |
| VI | Blizzard | power | 120 | 110 |
| VI | Bubble | power | 20 | 40 |
| VI | Charm | type | Normal | Fairy |
| VI | Chatter | power | 60 | 65 |
| VI | Covet | pp | 40 | 25 |
| VI | Crabhammer | power | 90 | 100 |
| VI | Draco Meteor | power | 140 | 130 |
| VI | Dragon Pulse | power | 90 | 85 |
| VI | Energy Ball | power | 80 | 90 |
| VI | Extrasensory | pp | 30 | 20 |
| VI | Fire Blast | power | 120 | 110 |
| VI | Fire Pledge | power | 50 | 80 |
| VI | Flamethrower | power | 95 | 90 |
| VI | Frost Breath | power | 40 | 60 |
| VI | Fury Cutter | power | 20 | 40 |
| VI | Future Sight | power | 100 | 120 |
| VI | Glare | accuracy | 90% | 100% |
| VI | Grass Pledge | power | 50 | 80 |
| VI | Growth | pp | 40 | 20 |
| VI | Gunk Shot | accuracy | 70% | 80% |
| VI | Heat Wave | power | 100 | 95 |
| VI | Hex | power | 50 | 65 |
| VI | Hidden Power | power | 1 | 60 |
| VI | Hurricane | power | 120 | 110 |
| VI | Hydro Pump | power | 120 | 110 |
| VI | Ice Beam | power | 95 | 90 |
| VI | Incinerate | power | 30 | 60 |
| VI | Knock Off | power | 20 | 65 |
| VI | Leaf Storm | power | 140 | 130 |
| VI | Lick | power | 20 | 30 |
| VI | Low Sweep | power | 60 | 65 |
| VI | Magma Storm | power | 120 | 100 |
| VI | Meteor Mash | accuracy | 85% | 90% |
| VI | Meteor Mash | power | 100 | 90 |
| VI | Minimize | pp | 20 | 10 |
| VI | Moonlight | type | Normal | Fairy |
| VI | Muddy Water | power | 95 | 90 |
| VI | Overheat | power | 140 | 130 |
| VI | Pin Missile | accuracy | 85% | 95% |
| VI | Pin Missile | power | 14 | 25 |
| VI | Poison Fang | effect chance | 30% | 50% |
| VI | Poison Gas | accuracy | 80% | 90% |
| VI | Power Gem | power | 70 | 80 |
| VI | Psycho Shift | accuracy | 90% | 100% |
| VI | Psywave | accuracy | 80% | 100% |
| VI | Roar | accuracy | 100% | None |
| VI | Rock Tomb | accuracy | 80% | 95% |
| VI | Rock Tomb | power | 50 | 60 |
| VI | Rock Tomb | pp | 10 | 15 |
| VI | Sacred Sword | pp | 20 | 15 |
| VI | Skull Bash | power | 100 | 130 |
| VI | Skull Bash | pp | 15 | 10 |
| VI | Smelling Salts | power | 60 | 70 |
| VI | Smog | power | 20 | 30 |
| VI | Snore | power | 40 | 50 |
| VI | Storm Throw | power | 40 | 60 |
| VI | Struggle Bug | power | 30 | 50 |
| VI | Submission | pp | 25 | 20 |
| VI | Surf | power | 95 | 90 |
| VI | Sweet Kiss | type | Normal | Fairy |
| VI | Swords Dance | pp | 30 | 20 |
| VI | Synchronoise | power | 70 | 120 |
| VI | Synchronoise | pp | 15 | 10 |
| VI | Tailwind | pp | 30 | 15 |
| VI | Techno Blast | power | 85 | 120 |
| VI | Thief | power | 40 | 60 |
| VI | Thief | pp | 10 | 25 |
| VI | Thunder | power | 120 | 110 |
| VI | Thunderbolt | power | 95 | 90 |
| VI | Vine Whip | power | 35 | 45 |
| VI | Vine Whip | pp | 15 | 25 |
| VI | Wake-Up Slap | power | 60 | 70 |
| VI | Water Pledge | power | 50 | 80 |
| VI | Whirlwind | accuracy | 100% | None |
| VI | Will-O-Wisp | accuracy | 75% | 85% |
| VII | Absorb | power | 20 | 40 |
| VII | Absorb | pp | 25 | 15 |
| VII | Dark Void | accuracy | 80% | 50% |
| VII | Fell Stinger | power | 30 | 50 |
| VII | Flying Press | power | 80 | 100 |
| VII | Leech Life | power | 20 | 80 |
| VII | Leech Life | pp | 15 | 10 |
| VII | Mega Drain | power | 40 | 75 |
| VII | Mega Drain | pp | 15 | 10 |
| VII | Mystical Fire | power | 65 | 75 |
| VII | Parabolic Charge | power | 50 | 65 |
| VII | Sky Attack | power | 140 | 200 |
| VII | Solar Beam | power | 120 | 200 |
| VII | String Shot | effect | Lowers the target’s Speed by one stage. | Lowers the target’s Speed by two stages. |
| VII | Sucker Punch | power | 80 | 70 |
| VII | Swagger | accuracy | 90% | 85% |
| VII | Tackle | power | 50 | 40 |
| VII | Thunder Wave | accuracy | 100% | 90% |
| VIII | Absorb | power | 40 | 20 |
| VIII | Absorb | pp | 15 | 25 |
| VIII | Mega Drain | power | 75 | 40 |
| VIII | Mega Drain | pp | 10 | 15 |
| VIII | Multi-Attack | power | 90 | 120 |
| VIII | Rapid Spin | power | 20 | 50 |
| VIII | Sky Attack | power | 200 | 140 |
| VIII | Solar Beam | power | 200 | 120 |
| IX | Mist Ball | power | 70 | 95 |