Type effectiveness from the most effective against other types least:
Fighting / 5 / ice, rock, steel, dark, normal
Ground / 5 / rock, steel, fire, electric, poison
Fire / 4 / steel, ice, bug, grass
Ice / 4 / ground, flying, grass, dragon
Rock / 4 / fire, flying, ice, bug
Water / 3 / fire, ground, rock
Grass / 3 / ground, rock, water
Flying / 3 / fighting, bug, grass
Bug / 3 / dark, psychic, grass
Electric / 2 / flying, water
Psychic / 2 / fighting, poison
Ghost / 2 / psychic, ghost
Dark / 2 / psychic, ghost
Steel / 2 / ice, rock
Poison / 1 / grass
Dragon / 1 / dragon
Normal / 0 /