Success in Backpack Battles comes from trying out different combinations of items. Don't be afraid to experiment and find what works best for you. Don't hesitate to be creative and create new weapons, especially useful to fight your opponents.
Where you put items in your backpack matters. Experiment with different arrangements to get the most out of your item combinations.
Keep an eye on what other players are doing and change your strategy to beat them. Being able to change and try new things is what makes you a winner in Backpack Battles.