Standard Rules:
* Normal Summon: Most monsters can only attack once per turn.
* Special Summon: Certain monsters can attack directly (without attacking a monster) during the Battle Phase.
* Multiple Attacking Monsters: If you have multiple monsters on the field, they can each attack once per turn.
Ways to Attack Twice (or More):
* "Double Attack" Cards: Certain cards, like "Double Attack", allow you to attack twice with the same monster.
* "Multiple Attack" Effects: Some monsters have inherent effects that allow them to attack multiple times (e.g., "Black Luster Soldier - Envoy of the Beginning").
* Spell/Trap Cards: Some cards can grant a monster multiple attacks or allow it to attack directly. (e.g., "Sword of the Duelist")
* Continuous Effects: Some cards have continuous effects that let you attack twice, like "Dark Magician Girl".
Important Notes:
* Attack Restrictions: While you might have the opportunity to attack twice, there are often restrictions. For example, you might be limited to attacking only once per Battle Phase, or only certain types of monsters might be able to attack twice.
* Opponent's Response: Your opponent can respond to your attacks with their own cards (monsters, spells, traps) to prevent them or disrupt your strategy.
Example:
Let's say you have a monster with the "Double Attack" effect. You can attack with it once during the Battle Phase, and then you can activate its "Double Attack" effect to attack again with the same monster.
In short, attacking twice is possible in Yu-Gi-Oh!, but it requires specific cards and conditions.