Make your own ability!

[OMGLOLZORS]

^
It's Unfezants. Trust me. I've been a PKMN fan since I was five-ish (I don't really remember).

Yes, because the length of time you have been a Pokémon fan for affects your ability to remember names that came out less than a year ago.

[Dracoandy666]

Fail safe: This ability randomly boosts one stat in a pinch by 2 stages.

Frozen Defense: A Pokemon with this ability and under the status of FRZ, gets a temporary boost to its Defense by one stage. This boost is lost when the Pokemon thaws out.

De Ja Vu: When this Pokemon's stats are changed by 2 stages in one turn, its stats are returned to normal the following turn. (For example, if the Pokemon with this ability used Draco Meteor, it would get its special attack stat back to normal at the end of the turn. Though if a Pokemon with this ability used Swords dance, It's attack stat would drop again at the end of the turn.)

Honesty: A Pokemon with this ability is able to attack through subs and also to make the ability Illusion void.

Nectar: A Pokemon with this ability gains a double boost when a berry is used.

[Mr.Mewtwo]

Unstable:Randomly switches the stats around.Exp:One the turn Shuckle comes in with this move,it has normal stats.However,on the next turn,it may suddenly have Speed and Attack high rather then Defence and Special defence.

[Nightmare Eater]

Theft: Prevents the opponent from attacking after a dark type move has been used.

[Reshurott Inferno]

Yes, because the length of time you have been a Pokémon fan for affects your ability to remember names that came out less than a year ago.

I just meant that I always find out PKMN names, regardless of date of creation, and store them into my long-term memory...

[spritey]

Eerie Smog

When Haze is used, evasiveness is maxed out and the power of Ghost type moves is increased. Smog also has no effect.

(Gastly, Golbat, Sableye, Shedinja, Duskull.)

Rose Buds

The Pokemon's HP is highly restored when the weather is Sunny and the Pokemon is hit by a Water type attack.

(Budew, Sawsbuck, Petilil.)

Dark Vortex

When the foe uses Whirpool, the Pokemon's Defense and Special Defense are increased by 3 levels. When the foe uses Fire Spin, Attack and Special Attack are increased by 3 levels. When the foe uses Leaf Tornado, accuracy, evasiveness, and Speed are increased by 3 levels.

(Dusknoir, Dusclops, Kadabra, Poliwhirl.)

[Reshurott Inferno]

^
Shouldn't Alakazam and Poliwrath also have Vortex of Doom and Destruction?

Competitive Makes CPU trainers want to rematch you. (Poliwrath, Hitmonchan, Machamp)

[Mr.Mewtwo]

Lunar Wing:Increases Speed,Def,Sp.Def and Sp.Atk(Cresselia)

[Nightmare Eater]

False Sturdy: If the user attacks and it will be a 1HKO, the foe is left with 1 hp
(Rhyhorn, Lairon, Nidoking, Nidoqueen, Kangaskhan)

Infection: When the user comes out, a random status condition goes to the foe.
(Gulpin line, Koffing line, Grimer line, Trubbish line)

Arachnophobia: If the user uses a physical attack, the foe's defense and special defense are lowered.
(Spinarak line, Joltik line)

[spritey]

Oversleep

The Pokemon will be asleep for a longer period of time, but its HP is fairly restored on each turn when asleep.

(Slaking, Snorlax, Abra.)

Ripple Waves

If the Pokemon's first Water type attack is a critical hit, it may strike again.

(Seismitoad, Tympole, Swampert, Surskit.)

Innocent Eyes

The foe's Defense and Special Defense are lowered when the foe launches a critical hit.

(Wigglytuff, Teddiursa, Igglybuff, Cleffa, Smoochum, Bonsly, Pichu, Ralts.)

[Deoxys2]

Oversleep

The Pokemon will be asleep for a longer period of time, but its HP is fairly restored on each turn when asleep.

(Slaking, Snorlax, Abra.)

I wish that was a normal ability, I like it. =)

Anti-Infected: When poisoned or burned, the damage done to you by them is halved.

Speedster: On the first turn the Pokemon is sent out on, you will attack first.

Stat Boost: If the Pokemon survives a potential OHKO on their first turn, then all stats are raised

[Mr.Mewtwo]

Sugar Rush:Speed increases greatly when an item like a RageCandyBar is used on the pokemon.

[spritey]

Flaming Temper

The Pokemon's Attack and Special Attack are boosted when the foe uses a Fire type move.

(Machamp, Primeape, Monferno, Infernape, Gyrados.)

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Ripening

Grass type moves always hit.

(Tropius.)

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Sharpshooter

Accuracy is maximized for projectile attacks.

(Octillery, Nuzleaf, Patrat, Watchog, Magmortar, Graveler.)

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Questioning

All stats are massively increased when the Pokemon is confused.

(Unown "?", Slowpoke, Psyduck, Woobat.)

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Strong Feeling

All stats are massively increased when the Pokemon is burned.

(Unown "!", Primeape, Tyrogue, Electabuzz, Excadrill.)

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Period

After 3 turns, the last attack used by the foe is disabled.

(Unown.)

[Reshurott Inferno]

^2 things:
1) Can Swoobat have Questioning?
2) The last one sounds kinda... gross, if you ask me.

Iron Foot

Kicking moves used by user get a 20% boost. Practically an opposite version of Iron Fist.
Moves boosted: blaze Kick, Hi Jump Kick, Jump Kick, Mega Kick, etc.

[Deoxys2]

Mud Slide

When attacked by a ground type move, the foe's accuracy decreases by 30.

(Arbok, Swalot, Muk and a lot of other poison types. ONLY poison can learn it)