USUM Pokedex "Highlights": Johto/Hoenn Edition

Misdreavus: What gives meaning to its life is surprising others. If you set your ear against the red orbs around its neck, you can hear shrieking.
Scizor: Once it has identified something as an enemy, it will continue beating them with its steel-hard pincers until there's nothing left but scraps.
Tyranitar Mega: Due to the colossal power poured into it, this Pokémon’s back split right open. Its destructive instincts are the only thing keeping it moving.
Sableye Mega: Bathed in the energy of Mega Evolution, the gemstone on its chest expands, rips through its skin, and falls out.
Mawile Mega: It has an extremely vicious disposition. It grips prey in its two sets of jaws and tears them apart with raw power.
Vibrava: It vibrates its wings to generate ultrasonic waves, causing its prey to faint. Then it buries the prey alive in the sand to preserve it.
Cradily: This carnivorous Pokémon lived in primordial seas. It catches prey in its eight tentacles and dissolves them with digestive fluid as it eats.
Glalie: It freezes its prey and chews them whole. However, it prefers to eat Pokémon like Vanillite that are already frozen.
Gorebyss: It sucks bodily fluids out of its prey. The leftover meat sinks to the seafloor, where it becomes food for other Pokémon.
Metagross Mega Ultra Sun: Its intellect surpasses its previous level, resulting in battles so cruel, they’ll make you want to cover your eyes.
Metagross Mega Ultra Moon: When it knows it can't win, it digs the claws on its legs into its opponent and starts the countdown to a big explosion.

Some "Highlights" From the USUM Pokedex [Kanto Edition]

Caterpie: Its body is soft and weak. In nature, its perpetual fate is to be seen by others as food.
Metapod: Its hard shell doesn't crack a bit even if Pikipek pecks at it, but it will tip over, spilling out its insides.
Rattata: Its incisors grow continuously throughout its life. If its incisors get too long, this Pokémon becomes unable to eat, and it starves to death.
Ekans: The eggs of bird Pokémon are its favorite food. It swallows eggs whole, so sometimes an egg gets stuck, and Ekans faints.
Paras: The mushrooms, known as tochukaso, are controlling the bug. Even if the bug bugs the mushrooms, they tell it to bug off.
Parasect: The bug is mostly dead, with the mushroom on its back having become the main body. If the mushroom comes off, the bug stops moving.
Graveler: It travels by rolling down cliffs. If it falls into a river, it will explode with its last gasp.
Gastly: Poisonous gas comprises 95% of its body. It's said that the remaining 5% is made up of the souls of those who died from the gas.
Haunter: It's dangerous to go outside alone on nights when you're feeling sad. Haunter will catch you, and you won't be able to go back home.
Gengar: Even your home isn't safe. Gengar will lurk in whatever dark corner of a room it can find and wait for its chance to catch its prey.
Gengar Mega: It tries to take the lives of anyone and everyone. It will even try to curse the Trainer who is its master!
Lickitung: It licks filth clean with its tongue. Whatever it licks always stinks afterward, so whether it's really clean is...questionable.
Kangaskhan Mega: When the mother sees the back of her Mega- Evolved child, it makes her think of the day when her child will inevitably leave her.