Disclaimer: If I owned Pokémon, I would make an official proclamation that there will never be a Light type and the very idea of it is ridiculous. But I don't!
#251 Celebi
A Celebi traveled to the final days of Earth, far in the future. It saw a beach infested with monstrous crabs and a cold, lifeless sea lit by a dying sun.
#252 Treecko
It infests houses in the tropics. Even in minimal light, its eyes glow brightly as it stares down from the ceiling.
#253 Grovyle
The sensitive feathers of this dromaeosaurid stiffen when air vibrations indicate prey is near. It calls to its pack and they quickly surround the unlucky creature.
#254 Sceptile
Its claws and leaf-like feathers are both sharp, making it the dominant predator in tropical rainforests. Its young burst out of the eggs on its back.
#255 Torchic
They are raised for food, usually kept in cages so small they cannot move. Those raised for fast food chains are abused in other ways as well.
#256 Combusken
They live in huge flocks in humid jungles. They are the likely ancestor of domesticated chickens, and will attack those who raise fowl for food.
#257 Blaziken
A species of terror bird that has lost most of its resemblance to other avians. It was one of ancient man's most deadly predators until most were wiped out by an ice age.
#258 Mudkip
Its cute appearance makes it popular in advertising promotions and aquariums. It has been hunted to scarcity to meet this demand.
#259 Marshtomp
An amphibious fish that lives in mangrove swamps. When people draw near, it grabs them and drowns them in deep mud pools.
#260 Swampert
It lives in tidal estuaries, able to emerge from the sea by breathing through its skin. When it senses tourists from nearby resorts, it begins to stalk them from the water.
#261 Poochyena
To children, it looks like an adorable stray puppy. If they feed one, the rest of the pack will be alerted and hurry over hungrily.
#262 Mightyena
Despite its name, it is a canid, not a hyena. Unlike true hyenas, it prefers live prey to carrion.
#263 Zigzagoon
It is a popular character in folktales, famed for its love of sake and large testicles. Trainers are reluctant to neuter their Zigzagoon and contradict this depiction, so the population has exploded.
#264 Linoone
For an unclear ethological reason, it almost always runs in a straight line. Because of this behavior, Linoone corpses are a common sight on highways and at the feet of cliffs.
#265 Wurmple
It injects poison when feeding on tree sap. Maple syrup from areas near Wurmple habitat may be fatally toxic, but it is hard to detect without a human tester.
#266 Silcoon
A Wumple has become a chrysalis to reshape its body. Inside the silk, the Wurmple's flesh is eaten away by digestive juices so its new body can grow.
#267 Beautifly
It has finally emerged as an imago. It drinks nectar but also sticks its proboscis into animals to feed on their blood- it can suck a Slakoth dry within minutes.
#268 Cascoon
A sensitive cocoon shields the Wurmple pupa during metamorphosis. If it is exposed to too much light, the emerging Dustox will be malformed and violent.
#269 Dustox
A huge Dustox with glowing red eyes appeared before a bridge collapse killed 46 people. It disappeared afterwards, but many remained haunted by its image.
#270 Lotad
An amphibian that has evolved a symbiotic relationship with a water lily. Eventually, the plant's roots will grow into its skull and strangle its brain.
#271 Lombre
While it was once feared as a reason to steer clear of murky water, it has received a cultural rebranding after one became the protagonist of a popular cartoon. Dead children are now often found in Hoenn rivers.
#272 Ludicolo
The liquid in its dish has a sweet scent that children are fond of. Do not allow them to follow its strange music or they will not return.
#273 Seedot
It explodes powerfully to release the seeds within. Forcing it to battle accelerates its development to the point where a devastating blast is inevitable.
#274 Nuzleaf
It uses the leaf on its head to fashion a strange flute. The whistling sound produced has a hypnotic effect on children, allowing it to lead them into the forest.
#275 Shiftry
A little-seen hamadryad of old-growth forests which dies if its tree home is destroyed. It believes that humans who provoke it have similar ties to their dwellings.