Trap Cards (Japanese: 罠カード Torappu Kādo) are cards with purple-coloured borders that have various effects. Unless stated otherwise, a Trap Card must first be Set and can only be activated after the current turn has finished. After that, it may be activated during either player's turn. Trap Cards are Spell Speed 2, with the exception of Counter Trap Cards, which are Spell Speed 3.
Normal Trap Cards are Spell Speed 2. They can be activated during either player's turn as long as it wasn't set that turn. The effects of certain Normal Trap Cards behave like Equip Cards, but the card is still considered a Normal Trap Card.
Continuous Trap Cards are also Spell Speed 2. Their effects are applied as long as they are face-up on the field.
Counter Trap Cards are a Spell Speed 3. No cards or effects, except other Counter Trap Cards can be chained to a Counter Trap Card.