Fire is strong against grass, ice, bug, and steel.
Grass is strong against water, ground, and rock.
Steel is strong against ice and rock.
Ice is strong against grass, ground, flying and dragon.
Ground is strong against fire, electric, poison, rock and steel.
Fighting is strong against normal, ice, rock, dark and steel.
Ghost is strong against psychic and ghost.
Psychic is strong against fighting and poison.
Dragon is strong against dragon.
Bug is strong against grass, psychic and dark.
Electric is strong against water and flying.
Rock is strong against fire, ice, flying and bug.
Poison is strong against grass and bug.
Flying is strong against grass, fighting and bug.
Normal isn't strong against anything.
Water is strong against fire, ground and rock.