Tell you a Yu-Gi-Oh card that has double the attack of on field?

It's not possible to create a card that automatically doubles the attack of every monster on the field with a single card effect. The rules of Yu-Gi-Oh! are designed to prevent this kind of overpowered effect.

Here's why:

* Balance: Cards that drastically alter the game state in one turn are generally considered too strong. Doubling every monster's attack would make it very difficult for the opponent to counter and would create an unfair advantage.

* Card Design: Card effects are usually designed to affect specific situations or target specific monsters. This helps keep the game balanced and allows for a variety of strategies.

However, there are ways to achieve a similar effect with multiple cards:

* Boosting Effects: Cards like "Increase" or "Power of the Guardians" can temporarily increase the attack of specific monsters, allowing you to control the attack power of your monsters.

* Field Spells: Some field spells offer continuous buffs to your monsters, potentially increasing their attack power in a similar way to doubling.

* Support Cards: Certain cards can enhance the attack power of your monsters based on their type, attribute, or other factors.

Remember: When designing a Yu-Gi-Oh! card, it's crucial to consider its impact on the game's balance. While a "double attack" card might seem fun, it's important to find creative ways to achieve similar effects while maintaining a fair and balanced game.