|Type||Strong Against||Vulnerable To|
|Bug||Grass, Dark, Psychic||Fire, Flying, Rock|
|Dark||Ghost, Psychic||Bug, Fairy, Fighting|
|Dragon||Dragon||Dragon, Fairy, Ice|
|Fairy||Fighting, Dark, Dragon||Poison, Steel|
|Fighting||Dark, Ice, Normal, Rock, Steel||Fairy, Flying, Psychic|
|Fire||Bug, Grass, Steel, Ice||Ground, Rock, Water|
|Flying||Bug, Fighting, Grass||Electric, Ice, Rock|
|Ghost||Ghost, Psychic||Dark, Ghost|
|Grass||Ground, Rock, Water||Bug, Fire, Flying, Ice, Poison|
|Ground||Electric, Fire, Poison, Rock, Steel||Grass, Ice, Water|
|Ice||Dragon, Flying, Grass, Ground||Fighting, Fire, Rock, Steel|
|Poison||Fairy, Grass||Ground, Psychic|
|Psychic||Fighting, Poison||Bug, Dark, Ghost|
|Rock||Bug, Fire, Flying, Ice||Fighting, Grass, Ground, Steel, Water|
|Steel||Fairy, Ice, Rock||Fighting, Fire, Ground|
|Water||Fire, Ground, Rock||Electric, Grass|
The simplest, easiest and fastest to look up which Pokémon types work best in competition against other Pokémon types in Pokemon GO. Search for a Pokémon type and you'll find out what will kick its butt, which butts it can kick, etc.
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Scroll through the entire list or search for a specific Pokémon types.
Disclaimer: Use at your own risk. Nothing is guaranteed, especially anything on this page, but, if you find a problem, please let me know!