Dark-type Pokémon are notable for the fact that they don't have any strong stat trends other than Attack (which is in and of itself modified by a few powerful outliers and slightly ironic as Dark was a special type, not a physical type.), but usually have relatively poor defenses, with the exception of Umbreon and Tyranitar (the second is probably due to its other type). Just the same, Pokémon that are both Dark-type and Template:Type2 have no true weaknesses, as the resistances of the Dark-type cover the weaknesses of Ghost, and vice-versa. One of the greatest advantages of the Dark-type is that they are immune to Template:Type2s.
Dark-type moves, when combating Psychic-types, are especially useful due to their secondary effects; Crunch lowers Defense (an already low stat among Psychic-types), Bite causes Flinching, Faint Attack never misses, while Pursuit hits Pokémon as they switch for double damage. Many Dark-type moves also involve stealing or deception, such as moves like Thief, which steals an opponent's held item, and Snatch, which steals the beneficial effects of an opponent's moves.
Interestingly, despite the fact that in generations prior to Generation IV, all Dark-type moves were special moves, there is only one special Dark-type move in Generation IV (Dark Pulse), which itself was actually introduced in that generation, meaning all Dark-type moves from before are actually considered physical moves.
When used in contests, Dark-type moves typically become Smart-type, but can also be any of the other four Contest types.
In total, there are 23 Pokémon with the Dark-type.
The target can't use the same move twice in a row.
There are no Dark-type moves with a base power greater than 80, making it the only elemental type without a single move with a base power of 100 or more.
None of the main characters of the anime own a Dark-type Pokémon. However, Ash, James, and May own or have owned Pokémon that can evolve into a Dark-type.
Before Diamond and Pearl, damaging Dark-type moves were all considered special, but all damaging Dark-type moves that existed then became physical in Generation IV. There is currently only one special Dark-type move (excluding Hidden Power), and it was created in Generation IV: Dark Pulse.
While holding the Dread Plate, Arceus's Judgment becomes the strongest Dark-type move and the only one to have a base power of more than 80.