From WikiFic
Card types are a means of dividing and organizing the various Monster Cards present in the Yu-Gi-Oh! TCG, OCG, or Duel Monsters game. In the English TCG, the following are the known card-types (Japanese OCG card-types are listed in parentheses):
- Aqua (Water)
- Beast (Animal)
- Beast-Warrior (Animal Warrior)
- Dinosaur (Dinosaur)
- Dragon (Dragon)
- Fairy (Angel)
- Fiend (Demon)
- Fish (Fish)
- Insect (Insect)
- Machine (Machine)
- Plant (Plant)
- Pyro (Fire)
- Reptile (Reptile)
- Rock (Rock)
- Sea Serpent (Water Dragon)
- Spellcaster (Magic-User)
- Thunder (Electric)
- Warrior (Warrior)
- Winged Beast (Bird)
- Zombie (Undead)
- Divine-Beast (Illusionary God Animal) - only exists on God Cards, which are illegal for tournament play
Spell Cards and Trap Cards are also technically their own type, and each have their own specific Property.