Burning

Burning cards allows you to get rid of cards that you don't want in exchange for QP and Mana Prisms. It also allows you to easily free up space in your Inventory if you need to.

Every card of any type can be burned, with the exception of Shielder, and they will each give you different amounts of QP and Mana Prisms depending on their stars and what kind of card it is.

The level of the card does not matter.