Ghost-types are mostly rare which is why they don't get as much spotlight as other Pokémon do. The Ghost-type is similar to the Dark-type but is much scarier. Although it is a kid's show, some of the Pokémon who appear in the show are beyond terrifying for those old enough to understand what they are seeing.
At face value, some of these Pokémon are not as scary, but the things they do in the Pokémon world are shocking. You may have a different view of Pokémon after reading this list. This is ranking the 10 scariest Ghost Pokémon. Proceed, if you dare.
It doesn't have the most terrifying appearance, but those glowing red eyes would be pretty scary in the dark. Gengar is the final evolution of Gastly. Gengar can be a difficult Pokémon to obtain, since Haunter only evolves into Gengar by trading.
If you manage to get one, this Pokémon can be a tremendous asset to a trainers team. Gengar is commonly taught Ghost moves such as Night Shade, Dream Eater, Shadow Ball, Hex, and Lick. According to Gengar's Pokémon Yellow description, "A Gengar is close by if you feel a sudden chill. It may be trying to lay a curse on you."
This stump Pokémon is commonly found in forests where it terrifies passersby. According to its Pokédex entry in Pokémon X, "These Pokémon are created when spirits possess rotten tree stumps. They prefer to live in abandoned forests."
As a Pokémon that is often found in dark forests, Phantump is one of the scariest Pokémon to be introduced. Sure, it could have been more terrifying, but it's a kids show, so it shouldn't be overly frightening.
Gaslty is able to learn creepy moves such as Lick and Confuse Ray. It is the first-stage Pokémon in its three-stage evolutionary chain. What makes Gastly the most is its ghost-like appearance and sharp fangs.
According to its Pokédex entry in Pokémon X, "Its body is made of gas. Despite lacking substance, it can envelop an opponent of any size and cause suffocation." Fun fact: 95% of Gastly's body is poisonous gas. This Pokémon stands out as one of the earliest scary Pokémon.
7 Mega Banette
Because Mega Banette is a mega-evolutionary form, it has exceedingly high base stats that are substantially larger than a regular Banette. Mega Banette is capable of reaching an impressive base Attack stat of 471.
This is a substantial increase over a regular Banette, which can only reach a maximum Attack stat of 361. Similarly, Mega Banette is more terrifying than Banette, and is one of the scariest Pokémon we've seen to date. Mega Banette is driven by pure hatred. Its zippers exist to cover its cursed body.
Duskull is pretty much the personification of the grim reaper. It is a night-dwelling Pokémon that will chase people until dawn. This Ghost-type Pokémon is capable of moving through walls, which is why it can be challenging to catch.
According to Duskull's Pokémon Ruby Pokédex entry, "Duskull wanders lost among the deep darkness of midnight. There is an oft-told admonishment given to misbehaving children that this Pokémon will spirit away bad children who earn scoldings from their mothers." It's a creepy description that is reminiscent of mythical creatures such as the Bogeyman, Uomo Nero, and Krampus.
This Ghost-type Pokémon resembles a witch in Pokémon form. Eerily, Mismagius puts its victims to sleep and then puts them into a dream world that they don't know they are in until they wake up. Mismagius emanates three red lights and has a creepy mouth in the shape of a "W."
According to Mismagius' Pokédex entry from Pokémon Diamond, "Its cries sound like incantations. Those hearing it are tormented by headaches and hallucinations." Mismagius is the evolved form of Misdreavus that evolves when it is given a Dusk Stone.
As one of the few Ghost-type legendary Pokémon, Giratina is far more terrifying in the anime series. Glowing red eyes, razor sharp golden pincers, and a horrific aura are reasons as to why Giratina is one of the scariest Pokémon.
Giratina takes on a snake-like appearance when it changes into the Origin Forme. Its Origin Forme is possibly more terrifying than its base form. According to its Pokémon Platinum Pokédex entry, "It was banished for its violence. It silently gazed upon the old world from the Distortion World."
Of its three-stage evolutionary line, Haunter is the most terrifying. Haunter is hauntingly beautiful and is a worthy addition to any Pokémon party lineup. It appeared in multiple episodes with its first appearance being in "The Tower of Terror", which is considered to be one of the most terrifying episodes of the series.
Haunter knows frightening techniques like Hypnosis, Dream Eater, and Lick. Although Gengar is scary, Haunter's ghost-like floating is creepy to say the least.
Trevenant is a tree-like Pokémon often found in the dark woods. It can make use of a tree's roots to control its nervous system and make it move. Interestingly enough, Trevenant and its former evolution, Phantump, are the only Pokémon capable of learning the technique "Forest's Curse." Trevenant is a terrifying entity that you wouldn't want to encounter in the shadows of a forest.
Trevenant despises Fire-type Pokémon and anyone who tries to harm the forest. According to its Pokédex entry description from Pokémon Sun, "This Pokémon is said to devour anyone daring to ravage the forest. To the creatures dwelling in the forest, it offers great kindness." Trevenant is not a tree; it is a monster.
Ghost and Fairy-type, Mimkyu is the most utterly terrifying Pokémon in existence. What the Pokémon franchise has done to their beloved mascot by creating this abomination is reprehensible. What the creators of Pokémon did do, however, is a heck of a job of frightening its fans.
According to Mimkyu's Pokédex entry from Pokémon Sun, "Its actual appearance is unknown. A scholar who saw what was under its rag was overwhelmed by terror and died from the shock." This Pokémon would add terror to any trainer's lineup and is deserving of first place for the scariest Ghost Pokémon yet.