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Types are a means to split monsters into groups (in a broader way to what Attributes do) in order to enable Support Cards granting various effects, to a specific order of monsters.
Each monster has 1 Type, and there are 21 different legal Types in the OCG & TCG (and a few made up) so far.
Real Monster Types[]
Aqua []
See the main article, Aqua.
Beast []
See the main article, Beast.
Beast-Warrior []
See the main article, Beast-Warrior.
Dinosaur []
See the main article, Dinosaur.
Dragon []
See the main article, Dragon.
Fairy []
See the main article, Fairy.
Fiend []
See the main article, Fiend.
Fish []
See the main article, Fish.
Insect []
See the main article, Insect.
Machine []
See the main article, Machine.
Plant []
See the main article, Plant.
Psychic []
See the main article, Psychic.
Pyro []
See the main article, Pyro.
Reptile []
See the main article, Reptile.
Rock []
See the main article, Rock.
Sea Serpent []
See the main article, Sea Serpent.
Spellcaster []
See the main article, Spellcaster.
Thunder []
See the main article, Thunder.
Warrior []
See the main article, Warrior.
Winged Beast []
See the main article, Winged Beast.
Zombie []
See the main article, Zombie.
Ice []
See the main article, Ice.