Abilities are a mechanic that provides a passive effect in battle or in the over world or both.  Not all abilities are good and may even hinder the Pokemon.  Pokemon can only have 1 ability and it can not be changed except by evolution where the new ability is determined by the former ability.  Most Pokemon will have two abilities that have a 49.5% of having and a 1% chance of getting it’s HA (Hidden Ability).

#	Name	Effect
091	Adaptability	Powers up moves of the same type as the Pokémon.
184	Aerilate	Normal-type moves become Flying-type moves. The power of those moves is boosted a little.
106	Aftermath	Damages the attacker if it contacts the Pokémon with a finishing hit.
076	Air Lock	Eliminates the effects of weather.
148	Analytic	Boosts move power when the Pokémon moves last.
083	Anger Point	The Pokémon is angered when it takes a critical hit, and that maxes its Attack stat.
107	Anticipation	The Pokémon can sense an opposing Pokémon’s dangerous moves.
071	Arena Trap	Prevents opposing Pokémon from fleeing.
165	Aroma Veil	Protects itself and its allies from attacks that limit their move choices.
188	Aura Break	The effects of “Aura” Abilities are reversed to lower the power of affected moves.
123	Bad Dreams	Reduces the HP of sleeping opposing Pokémon.
217	Battery	Powers up ally Pokémon’s special moves.
004	Battle Armor	Hard armor protects the Pokémon from critical hits.
210	Battle Bond	Defeating an opposing Pokémon strengthens the Pokémon’s bond with its Trainer, and it becomes Ash-Greninja. Water Shuriken gets more powerful.
224	Beast Boost	The Pokémon boosts its most proficient stat each time it knocks out a Pokémon.
201	Berserk	Boosts the Pokémon’s Sp. Atk stat when it takes a hit that causes its HP to become half or less.
145	Big Pecks	Protects the Pokémon from Defense-lowering effects.
066	Blaze	Powers up Fire-type moves when the Pokémon’s HP is low.
171	Bulletproof	Protects the Pokémon from some ball and bomb moves.
—	Cacophony	Avoids sound-based moves.
167	Cheek Pouch	Restores HP as well when the Pokémon eats a Berry.
034	Chlorophyll	Boosts the Pokémon’s Speed stat in sunshine.
029	Clear Body	Prevents other Pokémon’s moves or Abilities from lowering the Pokémon’s stats.
013	Cloud Nine	Eliminates the effects of weather.
016	Color Change	The Pokémon’s type becomes the type of the move used on it.
213	Comatose	It’s always drowsing and will never wake up. It can attack without waking up.
172	Competitive	Boosts the Sp. Atk stat sharply when a stat is lowered.
014	Compound Eyes	The Pokémon’s compound eyes boost its accuracy.
126	Contrary	Makes stat changes have an opposite effect.
212	Corrosion	The Pokémon can poison the target even if it’s a Steel or Poison type.
130	Cursed Body	May disable a move used on the Pokémon.
056	Cute Charm	Contact with the Pokémon may cause infatuation.
006	Damp	Prevents the use of explosive moves such as Self-Destruct by dampening its surroundings.
216	Dancer	When another Pokémon uses a dance move, it can use a dance move following it regardless of its Speed.
186	Dark Aura	Powers up each Pokémon’s Dark-type moves.
219	Dazzling	Surprises the opposing Pokémon, making it unable to attack using priority moves.
129	Defeatist	Halves the Pokémon’s Attack and Sp. Atk stats when its HP becomes half or less.
128	Defiant	Boosts the Pokémon’s Attack stat sharply when its stats are lowered.
191	Delta Stream	The Pokémon changes the weather to eliminate all of the Flying type’s weaknesses.
190	Desolate Land	The Pokémon changes the weather to nullify Water-type attacks.
209	Disguise	Once per battle, the shroud that covers the Pokémon can protect it from an attack.
088	Download	Compares an opposing Pokémon’s Defense and Sp. Def stats before raising its own Attack or Sp. Atk stat—whichever will be more effective.
002	Drizzle	The Pokémon makes it rain when it enters a battle.
070	Drought	Turns the sunlight harsh when the Pokémon enters a battle.
087	Dry Skin	Restores HP in rain or when hit by Water-type moves. Reduces HP in sunshine, and increases the damage received from Fire-type moves.
048	Early Bird	The Pokémon awakens twice as fast as other Pokémon from sleep.
027	Effect Spore	Contact with the Pokémon may inflict poison, sleep, or paralysis on its attacker.
226	Electric Surge	Turns the ground into Electric Terrain when the Pokémon enters a battle.
194	Emergency Exit	The Pokémon, sensing danger, switches out when its HP becomes half or less.
187	Fairy Aura	Powers up each Pokémon’s Fairy-type moves.
111	Filter	Reduces the power of supereffective attacks taken.
049	Flame Body	Contact with the Pokémon may burn the attacker.
138	Flare Boost	Powers up special attacks when the Pokémon is burned.
018	Flash Fire	Powers up the Pokémon’s Fire-type moves if it’s hit by one.
122	Flower Gift	Boosts the Attack and Sp. Def stats of itself and allies when it is sunny.
166	Flower Veil	Ally Grass-type Pokémon are protected from status conditions and the lowering of their stats.
218	Fluffy	Halves the damage taken from moves that make direct contact, but doubles that of Fire-type moves.
059	Forecast	The Pokémon transforms with the weather to change its type to Water, Fire, or Ice.
108	Forewarn	When it enters a battle, the Pokémon can tell one of the moves an opposing Pokémon has.
132	Friend Guard	Reduces damage done to allies.
119	Frisk	When it enters a battle, the Pokémon can check an opposing Pokémon’s held item.
230	Full Metal Body	Prevents other Pokémon’s moves or Abilities from lowering the Pokémon’s stats.
169	Fur Coat	Halves the damage from physical moves.
177	Gale Wings	Gives priority to Flying-type moves when the Pokémon’s HP is full.
206	Galvanize	Normal-type moves become Electric-type moves. The power of those moves is boosted a little.
082	Gluttony	Makes the Pokémon eat a held Berry when its HP drops to half or less, which is sooner than usual.
183	Gooey	Contact with the Pokémon lowers the attacker’s Speed stat.
179	Grass Pelt	Boosts the Pokémon’s Defense stat in Grassy Terrain.
229	Grassy Surge	Turns the ground into Grassy Terrain when the Pokémon enters a battle.
062	Guts	It’s so gutsy that having a status condition boosts the Pokémon’s Attack stat.
139	Harvest	May create another Berry after one is used.
131	Healer	Sometimes heals an ally’s status condition.
085	Heatproof	The heatproof body of the Pokémon halves the damage from Fire-type moves that hit it.
134	Heavy Metal	Doubles the Pokémon’s weight.
118	Honey Gather	The Pokémon may gather Honey after a battle.
037	Huge Power	Doubles the Pokémon’s Attack stat.
055	Hustle	Boosts the Attack stat, but lowers accuracy.
093	Hydration	Heals status conditions if it’s raining.
052	Hyper Cutter	The Pokémon’s proud of its powerful pincers. They prevent other Pokémon from lowering its Attack stat.
115	Ice Body	The Pokémon gradually regains HP in a hailstorm.
035	Illuminate	Raises the likelihood of meeting wild Pokémon by illuminating the surroundings.
149	Illusion	Comes out disguised as the Pokémon in the party’s last spot.
017	Immunity	The immune system of the Pokémon prevents it from getting poisoned.
150	Imposter	The Pokémon transforms itself into the Pokémon it’s facing.
151	Infiltrator	Passes through the opposing Pokémon’s barrier, substitute, and the like and strikes.
215	Innards Out	Damages the attacker landing the finishing hit by the amount equal to its last HP.
039	Inner Focus	The Pokémon’s intensely focused, and that protects the Pokémon from flinching.
015	Insomnia	The Pokémon is suffering from insomnia and cannot fall asleep.
022	Intimidate	The Pokémon intimidates opposing Pokémon upon entering battle, lowering their Attack stat.
160	Iron Barbs	Inflicts damage to the attacker on contact with iron barbs.
089	Iron Fist	Powers up punching moves.
154	Justified	Being hit by a Dark-type move boosts the Attack stat of the Pokémon, for justice.
051	Keen Eye	Keen eyes prevent other Pokémon from lowering this Pokémon’s accuracy.
103	Klutz	The Pokémon can’t use any held items.
102	Leaf Guard	Prevents status conditions in sunny weather.
026	Levitate	By floating in the air, the Pokémon receives full immunity to all Ground-type moves.
135	Light Metal	Halves the Pokémon’s weight.
031	Lightning Rod	The Pokémon draws in all Electric-type moves. Instead of being hit by Electric-type moves, it boosts its Sp. Atk.
007	Limber	Its limber body protects the Pokémon from paralysis.
064	Liquid Ooze	Oozed liquid has strong stench, which damages attackers using any draining move.
204	Liquid Voice	All sound-based moves become Water-type moves.
203	Long Reach	The Pokémon uses its moves without making contact with the target.
156	Magic Bounce	Reflects status moves, instead of getting hit by them.
098	Magic Guard	The Pokémon only takes damage from attacks.
170	Magician	The Pokémon steals the held item of a Pokémon it hits with a move.
040	Magma Armor	The Pokémon is covered with hot magma, which prevents the Pokémon from becoming frozen.
042	Magnet Pull	Prevents Steel-type Pokémon from escaping using its magnetic force.
063	Marvel Scale	The Pokémon’s marvelous scales boost the Defense stat if it has a status condition.
178	Mega Launcher	Powers up aura and pulse moves.
196	Merciless	The Pokémon’s attacks become critical hits if the target is poisoned.
058	Minus	Boosts the Sp. Atk stat of the Pokémon if an ally with the Plus or Minus Ability is also in battle.
228	Misty Surge	Turns the ground into Misty Terrain when the Pokémon enters a battle.
104	Mold Breaker	Moves can be used on the target regardless of its Abilities.
141	Moody	Raises one stat sharply and lowers another every turn.
078	Motor Drive	Boosts its Speed stat if hit by an Electric-type move, instead of taking damage.
153	Moxie	The Pokémon shows moxie, and that boosts the Attack stat after knocking out any Pokémon.
136	Multiscale	Reduces the amount of damage the Pokémon takes when its HP is full.
121	Multitype	Changes the Pokémon’s type to match the Plate or Z-Crystal it holds.
152	Mummy	Contact with the Pokémon changes the attacker’s Ability to Mummy.
030	Natural Cure	All status conditions heal when the Pokémon switches out.
233	Neuroforce	Powers up moves that are super effective.
099	No Guard	The Pokémon employs no-guard tactics to ensure incoming and outgoing attacks always land.
096	Normalize	All the Pokémon’s moves become Normal type. The power of those moves is boosted a little.
012	Oblivious	The Pokémon is oblivious, and that keeps it from being infatuated or falling for taunts.
142	Overcoat	Protects the Pokémon from things like sand, hail, and powder.
065	Overgrow	Powers up Grass-type moves when the Pokémon’s HP is low.
020	Own Tempo	This Pokémon has its own tempo, and that prevents it from becoming confused.
185	Parental Bond	Parent and child each attacks.
124	Pickpocket	Steals an item from an attacker that made direct contact.
053	Pickup	The Pokémon may pick up the item an opposing Pokémon used during a battle. It may pick up items outside of battle, too.
182	Pixilate	Normal-type moves become Fairy-type moves. The power of those moves is boosted a little.
057	Plus	Boosts the Sp. Atk stat of the Pokémon if an ally with the Plus or Minus Ability is also in battle.
090	Poison Heal	Restores HP if the Pokémon is poisoned, instead of losing HP.
038	Poison Point	Contact with the Pokémon may poison the attacker.
143	Poison Touch	May poison a target when the Pokémon makes contact.
211	Power Construct	Other Cells gather to aid when its HP becomes half or less. Then the Pokémon changes its form to Complete Forme.
223	Power of Alchemy	The Pokémon copies the Ability of a defeated ally.
158	Prankster	Gives priority to a status move.
046	Pressure	By putting pressure on the opposing Pokémon, it raises their PP usage.
189	Primordial Sea	The Pokémon changes the weather to nullify Fire-type attacks.
232	Prism Armor	Reduces the power of supereffective attacks taken.
168	Protean	Changes the Pokémon’s type to the type of the move it’s about to use.
227	Psychic Surge	Turns the ground into Psychic Terrain when the Pokémon enters a battle.
074	Pure Power	Using its pure power, the Pokémon doubles its Attack stat.
214	Queenly Majesty	Its majesty pressures the opposing Pokémon, making it unable to attack using priority moves.
095	Quick Feet	Boosts the Speed stat if the Pokémon has a status condition.
044	Rain Dish	The Pokémon gradually regains HP in rain.
155	Rattled	Dark-, Ghost-, and Bug-type moves scare the Pokémon and boost its Speed stat.
222	Receiver	The Pokémon copies the Ability of a defeated ally.
120	Reckless	Powers up moves that have recoil damage.
174	Refrigerate	Normal-type moves become Ice-type moves. The power of those moves is boosted a little.
144	Regenerator	Restores a little HP when withdrawn from battle.
079	Rivalry	Becomes competitive and deals more damage to Pokémon of the same gender, but deals less to Pokémon of the opposite gender.
225	RKS System	Changes the Pokémon’s type to match the memory disc it holds.
069	Rock Head	Protects the Pokémon from recoil damage.
024	Rough Skin	This Pokémon inflicts damage with its rough skin to the attacker on contact.
050	Run Away	Enables a sure getaway from wild Pokémon.
159	Sand Force	Boosts the power of Rock-, Ground-, and Steel-type moves in a sandstorm.
146	Sand Rush	Boosts the Pokémon’s Speed stat in a sandstorm.
045	Sand Stream	The Pokémon summons a sandstorm when it enters a battle.
008	Sand Veil	Boosts the Pokémon’s evasion in a sandstorm.
157	Sap Sipper	Boosts the Attack stat if hit by a Grass-type move, instead of taking damage.
208	Schooling	When it has a lot of HP, the Pokémon forms a powerful school. It stops schooling when its HP is low.
113	Scrappy	The Pokémon can hit Ghost-type Pokémon with Normal- and Fighting-type moves.
032	Serene Grace	Boosts the likelihood of additional effects occurring when attacking.
231	Shadow Shield	Reduces the amount of damage the Pokémon takes while its HP is full.
023	Shadow Tag	This Pokémon steps on the opposing Pokémon’s shadow to prevent it from escaping.
061	Shed Skin	The Pokémon may heal its own status conditions by shedding its skin.
125	Sheer Force	Removes additional effects to increase the power of moves when attacking.
075	Shell Armor	A hard shell protects the Pokémon from critical hits.
019	Shield Dust	This Pokémon’s dust blocks the additional effects of attacks taken.
197	Shields Down	When its HP becomes half or less, the Pokémon’s shell breaks and it becomes aggressive.
086	Simple	The stat changes the Pokémon receives are doubled.
092	Skill Link	Maximizes the number of times multi-strike moves hit.
112	Slow Start	For five turns, the Pokémon’s Attack and Speed stats are halved.
202	Slush Rush	Boosts the Pokémon’s Speed stat in a hailstorm.
097	Sniper	Powers up moves if they become critical hits when attacking.
081	Snow Cloak	Boosts evasion in a hailstorm.
117	Snow Warning	The Pokémon summons a hailstorm when it enters a battle.
094	Solar Power	Boosts the Sp. Atk stat in sunny weather, but HP decreases every turn.
116	Solid Rock	Reduces the power of supereffective attacks taken.
220	Soul-Heart	Boosts its Sp. Atk stat every time a Pokémon faints.
043	Soundproof	Soundproofing of the Pokémon itself gives full immunity to all sound-based moves.
003	Speed Boost	Its Speed stat is boosted every turn.
198	Stakeout	Doubles the damage dealt to the target’s replacement if the target switches out.
100	Stall	The Pokémon moves after all other Pokémon do.
192	Stamina	Boosts the Defense stat when hit by an attack.
176	Stance Change	The Pokémon changes its form to Blade Forme when it uses an attack move, and changes to Shield Forme when it uses King’s Shield.
009	Static	The Pokémon is charged with static electricity, so contact with it may cause paralysis.
080	Steadfast	The Pokémon’s determination boosts the Speed stat each time the Pokémon flinches.
200	Steelworker	Powers up Steel-type moves.
001	Stench	By releasing stench when attacking, this Pokémon may cause the target to flinch.
060	Sticky Hold	Items held by the Pokémon are stuck fast and cannot be removed by other Pokémon.
114	Storm Drain	Draws in all Water-type moves. Instead of being hit by Water-type moves, it boosts its Sp. Atk.
173	Strong Jaw	The Pokémon’s strong jaw boosts the power of its biting moves.
005	Sturdy	It cannot be knocked out with one hit. One-hit KO moves cannot knock it out, either.
021	Suction Cups	This Pokémon uses suction cups to stay in one spot to negate all moves and items that force switching out.
105	Super Luck	The Pokémon is so lucky that the critical-hit ratios of its moves are boosted.
207	Surge Surfer	Doubles the Pokémon’s Speed stat on Electric Terrain.
068	Swarm	Powers up Bug-type moves when the Pokémon’s HP is low.
175	Sweet Veil	Prevents itself and ally Pokémon from falling asleep.
033	Swift Swim	Boosts the Pokémon’s Speed stat in rain.
180	Symbiosis	The Pokémon passes its item to an ally that has used up an item.
028	Synchronize	The attacker will receive the same status condition if it inflicts a burn, poison, or paralysis to the Pokémon.
077	Tangled Feet	Raises evasion if the Pokémon is confused.
221	Tangling Hair	Contact with the Pokémon lowers the attacker’s Speed stat.
101	Technician	Powers up the Pokémon’s weaker moves.
140	Telepathy	Anticipates an ally’s attack and dodges it.
164	Teravolt	Moves can be used on the target regardless of its Abilities.
047	Thick Fat	The Pokémon is protected by a layer of thick fat, which halves the damage taken from Fire- and Ice-type moves.
110	Tinted Lens	The Pokémon can use “not very effective” moves to deal regular damage.
067	Torrent	Powers up Water-type moves when the Pokémon’s HP is low.
181	Tough Claws	Powers up moves that make direct contact.
137	Toxic Boost	Powers up physical attacks when the Pokémon is poisoned.
036	Trace	When it enters a battle, the Pokémon copies an opposing Pokémon’s Ability.
205	Triage	Gives priority to a healing move.
054	Truant	The Pokémon can’t use a move the following turn if it uses one.
163	Turboblaze	Moves can be used on the target regardless of its Abilities.
109	Unaware	When attacking, the Pokémon ignores the target Pokémon’s stat changes.
084	Unburden	Boosts the Speed stat if the Pokémon’s held item is used or lost.
127	Unnerve	Unnerves opposing Pokémon and makes them unable to eat Berries.
162	Victory Star	Boosts the accuracy of its allies and itself.
072	Vital Spirit	The Pokémon is full of vitality, and that prevents it from falling asleep.
010	Volt Absorb	Restores HP if hit by an Electric-type move, instead of taking damage.
011	Water Absorb	Restores HP if hit by a Water-type move, instead of taking damage.
199	Water Bubble	Lowers the power of Fire-type moves done to the Pokémon and prevents the Pokémon from getting a burn.
195	Water Compaction	Boosts the Pokémon’s Defense stat sharply when hit by a Water-type move.
041	Water Veil	The Pokémon is covered with a water veil, which prevents the Pokémon from getting a burn.
133	Weak Armor	Physical attacks to the Pokémon lower its Defense stat but sharply raise its Speed stat.
073	White Smoke	The Pokémon is protected by its white smoke, which prevents other Pokémon from lowering its stats.
193	Wimp Out	The Pokémon cowardly switches out when its HP becomes half or less.
025	Wonder Guard	Its mysterious power only lets supereffective moves hit the Pokémon.
147	Wonder Skin	Makes status moves more likely to miss.
161	Zen Mode	Changes the Pokémon’s shape when HP is half or less.

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