Collection Overview
Your NFT collection is shown below. The first four collectibles represent a "recipe" to mint the fifth. You will see a "FORGE" button at the end of a row if you own at least one collectible with a "charged" attribute in the first four spaces of that row and and don't already own the result on the right.
When you press a "FORGE" button, the charge will be removed from one of each collectible row in that row to mint the fifth item. This will occur once.
An image will only be lit if you own at least one that has a charge. Combining will not remove the NFT, only the charge and only if it could be spent to mint something at this time.