* Monsters: These are the creatures your opponent summons onto the field.
* Spells: These are cards that provide effects, like boosting your monster's attack, destroying an opponent's card, or drawing extra cards.
* Traps: These are cards that activate in response to specific events, often with powerful defensive or offensive effects.
Important Note: The specific card will usually clarify what kind of card it's targeting. For example:
* "Target 1 face-up monster your opponent controls..." This specifically targets a monster card.
* "Destroy 1 Spell/Trap your opponent controls..." This specifically targets either a Spell or a Trap card.
If the card doesn't specify the type of card, it usually means it can target any type of card your opponent controls.
Examples:
* "Your opponent's cards cannot activate their effects..." This means your opponent's monsters, spells, and traps cannot activate their effects.
* "Destroy 1 card your opponent controls..." This means you can choose to destroy any of your opponent's cards: monster, spell, or trap.
If you are ever unsure about the meaning of a card effect, it's always best to refer to the official Yu-Gi-Oh! website or the card database for clarification.