How do you use a vanilla card on pirate 101?

To use a Vanilla Card in Pirate101, you first need to ensure you have the card in your inventory. Then, during a battle, you can select it from your card deck and play it like any other card. Just drag the Vanilla Card onto your target or press the corresponding button to activate its effects. Keep in mind that the Vanilla Card typically has specific uses, so check its details for any special conditions.