18 species had an ability replaced; 440 gained a slot that was empty

Replacements

18 rows where one ability gave way to another

Generation V, hidden ability

418 species get a hidden ability in Generation V

Each slot was empty before the generation named; the name is the ability that filled it.

Abomasnow (Soundproof), Abra (Magic Guard), Absol (Justified), Aerodactyl (Unnerve), Aggron (Heavy Metal), Aipom (Skill Link), Alakazam (Magic Guard), Altaria (Cloud Nine), Ambipom (Skill Link), Ampharos (Plus), Anorith (Swift Swim), Arbok (Unnerve), Arcanine (Justified), Ariados (Sniper), Armaldo (Swift Swim), Aron (Heavy Metal), Azumarill (Sap Sipper), Azurill (Sap Sipper), Bagon (Sheer Force), Banette (Cursed Body), Barboach (Hydration), Bastiodon (Soundproof), Beautifly (Rivalry), Beedrill (Sniper), Beldum (Light Metal), Bellossom (Healer), Bellsprout (Gluttony), Bibarel (Moody), Bidoof (Moody), Blastoise (Rain Dish), Blaziken (Speed Boost), Blissey (Healer), Bonsly (Rattled), Breloom (Technician), Bronzong (Heavy Metal), Bronzor (Heavy Metal), Budew (Leaf Guard), Buizel (Water Veil), Bulbasaur (Chlorophyll), Buneary (Limber), Burmy (Overcoat), Butterfree (Tinted Lens), Cacnea (Water Absorb), Cacturne (Water Absorb), Camerupt (Anger Point), Carvanha (Speed Boost), Caterpie (Run Away), Chansey (Healer), Charizard (Solar Power), Charmander (Solar Power), Charmeleon (Solar Power), Chatot (Big Pecks), Chimchar (Iron Fist), Chinchou (Water Absorb), Clamperl (Rattled), Clefable (Unaware), Clefairy (Friend Guard), Cleffa (Friend Guard), Cloyster (Overcoat), Combee (Hustle), Combusken (Speed Boost), Corphish (Adaptability), Corsola (Regenerator), Cradily (Storm Drain), Cranidos (Sheer Force), Crawdaunt (Adaptability), Croagunk (Poison Touch), Crobat (Infiltrator), Cubone (Battle Armor), Delcatty (Wonder Skin), Delibird (Insomnia), Dewgong (Ice Body), Dialga (Telepathy), Diglett (Sand Force), Ditto (Imposter), Dodrio (Tangled Feet), Doduo (Tangled Feet), Donphan (Sand Veil), Dragonair (Marvel Scale), Dragonite (Multiscale), Drapion (Keen Eye), Dratini (Marvel Scale), Drifblim (Flare Boost), Drifloon (Flare Boost), Drowzee (Inner Focus), Dugtrio (Sand Force), Dunsparce (Rattled), Dustox (Compound Eyes), Eevee (Anticipation), Ekans (Unnerve), Electabuzz (Vital Spirit), Electivire (Vital Spirit), Electrike (Minus), Electrode (Aftermath), Elekid (Vital Spirit), Empoleon (Defiant), Espeon (Magic Bounce), Exeggcute (Harvest), Exeggutor (Harvest), Exploud (Scrappy), Farfetch’d (Defiant), Fearow (Sniper), Feebas (Adaptability), Finneon (Water Veil), Flaaffy (Plus), Flareon (Guts), Floatzel (Water Veil), Forretress (Overcoat), Froslass (Cursed Body), Furret (Frisk), Gabite (Rough Skin), Gallade (Justified), Garchomp (Rough Skin), Gardevoir (Telepathy), Gastrodon (Sand Force), Geodude (Sand Veil), Gible (Rough Skin), Girafarig (Sap Sipper), Giratina (Telepathy), Glaceon (Ice Body), Glalie (Moody), Glameow (Keen Eye), Gligar (Immunity), Gliscor (Poison Heal), Gloom (Stench), Golbat (Infiltrator), Goldeen (Lightning Rod), Golduck (Swift Swim), Golem (Sand Veil), Gorebyss (Hydration), Granbull (Rattled), Graveler (Sand Veil), Grimer (Poison Touch), Grotle (Shell Armor), Grovyle (Unburden), Growlithe (Justified), Grumpig (Gluttony), Gulpin (Gluttony), Gyarados (Moxie), Happiny (Friend Guard), Hariyama (Sheer Force), Heracross (Moxie), Hippopotas (Sand Force), Hippowdon (Sand Force), Hitmonchan (Inner Focus), Hitmonlee (Unburden), Hitmontop (Steadfast), Ho-Oh (Regenerator), Honchkrow (Moxie), Hoothoot (Tinted Lens), Hoppip (Infiltrator), Horsea (Damp), Houndoom (Unnerve), Houndour (Unnerve), Huntail (Water Veil), Hypno (Inner Focus), Igglybuff (Friend Guard), Illumise (Prankster), Infernape (Iron Fist), Ivysaur (Chlorophyll), Jigglypuff (Friend Guard), Jolteon (Quick Feet), Jumpluff (Infiltrator), Jynx (Dry Skin), Kabuto (Weak Armor), Kabutops (Weak Armor), Kadabra (Magic Guard), Kangaskhan (Inner Focus), Kingdra (Damp), Kingler (Sheer Force), Kirlia (Telepathy), Krabby (Sheer Force), Kricketot (Run Away), Kricketune (Technician), Lairon (Heavy Metal), Lanturn (Water Absorb), Lapras (Hydration), Larvitar (Sand Veil), Leafeon (Chlorophyll), Ledian (Iron Fist), Ledyba (Rattled), Lickilicky (Cloud Nine), Lickitung (Cloud Nine), Lileep (Storm Drain), Linoone (Quick Feet), Lombre (Own Tempo), Lopunny (Limber), Lotad (Own Tempo), Loudred (Scrappy), Lucario (Justified), Ludicolo (Own Tempo), Lugia (Multiscale), Lumineon (Water Veil), Luvdisc (Hydration), Luxio (Guts), Luxray (Guts), Machamp (Steadfast), Machoke (Steadfast), Machop (Steadfast), Magby (Vital Spirit), Magcargo (Weak Armor), Magikarp (Rattled), Magmar (Vital Spirit), Magmortar (Vital Spirit), Magnemite (Analytic), Magneton (Analytic), Magnezone (Analytic), Makuhita (Sheer Force), Mamoswine (Thick Fat), Manectric (Minus), Mankey (Defiant), Mantine (Water Veil), Mantyke (Water Veil), Mareep (Plus), Marill (Sap Sipper), Marowak (Battle Armor), Marshtomp (Damp), Masquerain (Unnerve), Mawile (Sheer Force), Medicham (Telepathy), Meditite (Telepathy), Meowth (Unnerve), Metagross (Light Metal), Metang (Light Metal), Mewtwo (Unnerve), Mightyena (Moxie), Milotic (Cute Charm), Miltank (Sap Sipper), Mime Jr. (Technician), Monferno (Iron Fist), Mothim (Tinted Lens), Mr. Mime (Technician), Mudkip (Damp), Muk (Poison Touch), Munchlax (Gluttony), Murkrow (Prankster), Natu (Magic Bounce), Nidoking (Sheer Force), Nidoqueen (Sheer Force), Nidoran♀ (Hustle), Nidoran♂ (Hustle), Nidorina (Hustle), Nidorino (Hustle), Nincada (Run Away), Ninetales (Drought), Ninjask (Infiltrator), Noctowl (Tinted Lens), Nosepass (Sand Force), Numel (Own Tempo), Nuzleaf (Pickpocket), Octillery (Moody), Oddish (Run Away), Omanyte (Weak Armor), Omastar (Weak Armor), Onix (Weak Armor), Pachirisu (Volt Absorb), Palkia (Telepathy), Paras (Damp), Parasect (Damp), Pelipper (Rain Dish), Persian (Unnerve), Phanpy (Sand Veil), Pichu (Lightning Rod), Pidgeot (Big Pecks), Pidgeotto (Big Pecks), Pidgey (Big Pecks), Pikachu (Lightning Rod), Piloswine (Thick Fat), Pineco (Overcoat), Pinsir (Moxie), Piplup (Defiant), Politoed (Drizzle), Poliwag (Swift Swim), Poliwhirl (Swift Swim), Poliwrath (Swift Swim), Ponyta (Flame Body), Poochyena (Rattled), Porygon (Analytic), Porygon-Z (Analytic), Porygon2 (Analytic), Primeape (Defiant), Prinplup (Defiant), Probopass (Sand Force), Psyduck (Swift Swim), Purugly (Defiant), Quagsire (Unaware), Qwilfish (Intimidate), Raichu (Lightning Rod), Ralts (Telepathy), Rampardos (Sheer Force), Rapidash (Flame Body), Raticate (Hustle), Rattata (Hustle), Relicanth (Sturdy), Remoraid (Moody), Rhydon (Reckless), Rhyhorn (Reckless), Rhyperior (Reckless), Riolu (Prankster), Roselia (Leaf Guard), Roserade (Technician), Sableye (Prankster), Salamence (Moxie), Sandshrew (Sand Rush), Sandslash (Sand Rush), Sceptile (Unburden), Scizor (Light Metal), Scyther (Steadfast), Seadra (Damp), Seaking (Lightning Rod), Sealeo (Oblivious), Seedot (Pickpocket), Seel (Ice Body), Sentret (Frisk), Seviper (Infiltrator), Sharpedo (Speed Boost), Shelgon (Overcoat), Shellder (Overcoat), Shellos (Sand Force), Shieldon (Soundproof), Shiftry (Pickpocket), Shinx (Guts), Shroomish (Quick Feet), Shuckle (Contrary), Shuppet (Cursed Body), Skarmory (Weak Armor), Skiploom (Infiltrator), Skitty (Wonder Skin), Skorupi (Keen Eye), Skuntank (Keen Eye), Slowbro (Regenerator), Slowking (Regenerator), Slowpoke (Regenerator), Slugma (Weak Armor), Smeargle (Moody), Smoochum (Hydration), Sneasel (Pickpocket), Snorlax (Gluttony), Snorunt (Moody), Snover (Soundproof), Snubbull (Rattled), Spearow (Sniper), Spheal (Oblivious), Spinarak (Sniper), Spinda (Contrary), Spiritomb (Infiltrator), Spoink (Gluttony), Squirtle (Rain Dish), Stantler (Sap Sipper), Staraptor (Reckless), Staravia (Reckless), Starmie (Analytic), Staryu (Analytic), Steelix (Sheer Force), Stunky (Keen Eye), Sudowoodo (Rattled), Sunflora (Early Bird), Sunkern (Early Bird), Surskit (Rain Dish), Swablu (Cloud Nine), Swalot (Gluttony), Swampert (Damp), Swellow (Scrappy), Swinub (Thick Fat), Taillow (Scrappy), Tangela (Regenerator), Tangrowth (Regenerator), Tauros (Sheer Force), Teddiursa (Honey Gather), Tentacool (Rain Dish), Tentacruel (Rain Dish), Togekiss (Super Luck), Togepi (Super Luck), Togetic (Super Luck), Torchic (Speed Boost), Torkoal (Shell Armor), Torterra (Shell Armor), Toxicroak (Poison Touch), Trapinch (Sheer Force), Treecko (Unburden), Tropius (Harvest), Turtwig (Shell Armor), Tyranitar (Unnerve), Tyrogue (Vital Spirit), Umbreon (Inner Focus), Ursaring (Unnerve), Vaporeon (Hydration), Venomoth (Wonder Skin), Venonat (Run Away), Venusaur (Chlorophyll), Vespiquen (Unnerve), Victreebel (Gluttony), Vileplume (Effect Spore), Volbeat (Prankster), Voltorb (Aftermath), Vulpix (Drought), Wailmer (Pressure), Wailord (Pressure), Walrein (Oblivious), Wartortle (Rain Dish), Weavile (Pickpocket), Weedle (Run Away), Weepinbell (Gluttony), Whiscash (Hydration), Whismur (Rattled), Wigglytuff (Frisk), Wingull (Rain Dish), Wobbuffet (Telepathy), Wooper (Unaware), Wormadam (Overcoat), Wurmple (Run Away), Wynaut (Telepathy), Xatu (Magic Bounce), Yanma (Frisk), Yanmega (Frisk), Zangoose (Toxic Boost), Zigzagoon (Quick Feet), Zubat (Infiltrator).

Generation IV, ability slot 2

89 species get a second ability in Generation IV

Absol (Super Luck), Banette (Frisk), Barboach (Anticipation), Breloom (Poison Heal), Camerupt (Solid Rock), Clefable (Magic Guard), Clefairy (Magic Guard), Cleffa (Magic Guard), Cloyster (Skill Link), Delcatty (Normalize), Dewgong (Hydration), Drowzee (Forewarn), Eevee (Adaptability), Glalie (Ice Body), Granbull (Quick Feet), Hitmonchan (Iron Fist), Hitmonlee (Reckless), Hitmontop (Technician), Hoppip (Leaf Guard), Horsea (Sniper), Hypno (Forewarn), Illumise (Tinted Lens), Jumpluff (Leaf Guard), Jynx (Forewarn), Kangaskhan (Scrappy), Kingdra (Sniper), Linoone (Gluttony), Machamp (No Guard), Machoke (No Guard), Machop (No Guard), Mankey (Anger Point), Meowth (Technician), Mightyena (Quick Feet), Miltank (Scrappy), Mr. Mime (Filter), Murkrow (Super Luck), Nidoking (Rivalry), Nidoqueen (Rivalry), Nidoran♀ (Rivalry), Nidoran♂ (Rivalry), Nidorina (Rivalry), Nidorino (Rivalry), Numel (Simple), Octillery (Sniper), Paras (Dry Skin), Parasect (Dry Skin), Persian (Technician), Pidgeot (Tangled Feet), Pidgeotto (Tangled Feet), Pidgey (Tangled Feet), Piloswine (Snow Cloak), Pinsir (Mold Breaker), Poochyena (Quick Feet), Porygon (Download), Porygon2 (Download), Primeape (Anger Point), Remoraid (Sniper), Sableye (Stall), Scizor (Technician), Scyther (Technician), Seadra (Sniper), Sealeo (Ice Body), Seel (Hydration), Shellder (Skill Link), Shroomish (Poison Heal), Shuckle (Gluttony), Shuppet (Frisk), Skiploom (Leaf Guard), Skitty (Normalize), Smeargle (Technician), Smoochum (Forewarn), Snorunt (Ice Body), Spheal (Ice Body), Spinda (Tangled Feet), Stantler (Frisk), Sunflora (Solar Power), Sunkern (Solar Power), Swinub (Snow Cloak), Tangela (Leaf Guard), Tauros (Anger Point), Teddiursa (Quick Feet), Tropius (Solar Power), Tyrogue (Steadfast), Ursaring (Quick Feet), Venomoth (Tinted Lens), Venonat (Tinted Lens), Walrein (Ice Body), Whiscash (Anticipation), Zigzagoon (Gluttony).

Generation VII, ability slot 2

11 species get a second ability in Generation VII

Beartic (Slush Rush), Boldore (Weak Armor), Cubchoo (Slush Rush), Gigalith (Sand Stream), Pelipper (Drizzle), Roggenrola (Weak Armor), Torkoal (Drought), Vanillish (Snow Cloak), Vanillite (Snow Cloak), Vanilluxe (Snow Warning), Wingull (Hydration).

Generation VI, hidden ability

8 species get a hidden ability in Generation VI

Dusclops (Frisk), Dusknoir (Frisk), Duskull (Frisk), Ferrothorn (Anticipation), Kecleon (Protean), Minun (Volt Absorb), Plusle (Lightning Rod), Starly (Reckless).

Generation VI, ability slot 2

8 species get a second ability in Generation VI

Feebas (Oblivious), Gothita (Competitive), Gothitelle (Competitive), Gothorita (Competitive), Igglybuff (Competitive), Jigglypuff (Competitive), Milotic (Competitive), Wigglytuff (Competitive).

Generation VIII, ability slot 2

2 species get a second ability in Generation VIII

Koffing (Neutralizing Gas), Weezing (Neutralizing Gas).

Generation IX, ability slot 2

2 species get a second ability in Generation IX

Gallade (Sharpness), Sneasler (Unburden).