Dark Type

Dark Type Pokémon are introduced in Generation 2. Dark Type Pokémon characteristics are as follows:

DARK
-Super Effective Against: Psychic & Ghost
-Weakness: Fighting & Bug
-Resistance: Ghost & Dark
-Not Very Effective Against: Fighting, Dark, & Steel
-Immunity: Psychic


There are 6 brand new Dark Type Pokémon added in Generation 2. None of the Generation 1 Pokémon had their type switched to Dark:

 

Umbreon

Dark

(Evolves From Eevee)

Murkrow

 Dark/Flying

  

Sneasel

Dark/Ice

Houndour

Dark/Fire

Houndoom

Dark/Fire

(Evolves from Houndour)

Tyranitar

Rock/Dark

(Final Evolution in the Larvitar-Pupitar chain)