Dark-type Pokémon have resistances to Ghost, other Dark, and Psychic-type Pokémon. But they are vulnerable to Fighting, Bug, and Fairy-type moves.

Why are dark types weak to bug?

Dark types are weak to (and resisted by) fighting because most types of fighting emphasize discipline; many of them put themselves in painful situations to strengthen themselves.

Does prankster work on dark types?

Dark-type Pokémon can still bounce moves back with Magic Bounce or Magic Coat; moves that have increased priority due to Prankster which are reflected by Magic Bounce or Magic Coat can affect Dark-type Pokémon, unless the Pokémon that bounced the move with Magic Coat also has Prankster.

Why are dark types immune to prankster?

Dark-type Pokémon are now immune to opposing Pokémon’s moves that gain priority due to Prankster, including moves called by moves that call other moves (such as Assist and Nature Power) and excluding moves that are repeated as a result of Prankster-affected Instruct or moves that occur earlier than their usual order …

What moves don’t affect dark-type?

Dark-type attacks are resisted by Fighting, Dark, and Fairy, so using them along with Fairy attacks will optimize neutral coverage.

Does toxic work on dark types?

From the Prankster page on Bulbapedia, moves like Toxic, Thunder Wave, and Leech Seed, that effect the opposing Pokemon, is where the Dark Type is immune.

Do status moves work on dark types?

Yes. Hypnosis works on Dark-type Pokémon.

Does Prankster work on Roar?

Prankster Copycat lets Riolu spam priority Roar, which, in conjunction with entry hazard support, allows it to outright sweep certain teams.