Instructions
Avoid Marduck's attacks. Since Marduk's Bakugan are more powerful than yours, you will not be able to win the battle by engaging him directly.
Get gate cards by sending your Bakugan out into the field. Have two Bakugan stand on a single gate card to perform a double stand. For every double stand you perform, you will receive a gate card.
Use your Leonidas gate card when you have access to it. This will bring out your Leonidas Bakugan and end the battle.