Types

Those are all the Pokete/Attack types that are present in the game with all their (in)effectivities against other types.

Type	Effective against	Ineffective against
Normal
Stone	Flying, Fire	Plant
Plant	Stone, Ground, Water	Fire, Ice
Water	Stone, Flying, Fire	Plant, Ice
Fire	Flying, Plant, Undead, Ice	Stone, Water
Ground	Normal	Flying, Ice
Electro	Stone, Flying	Ground
Flying	Plant	Stone
Undead	Normal, Ground, Plant, Water, Poison	Fire
Ice	Water, Plant, Ground	Fire
Poison	Normal	Undead