Players can obtain Gold Coins and Weapon Cards while playing Defense Mode. These items will be stored in Storage, under Item tab (ZM). To combine a weapon, players will need the Weapon blueprint and the amount of Gold Coin required for combination. Once the two requirements are met, clicking "Use" on the Weapon card will bring up Combinate Menu, and players can click the "+" button to craft the weapon. It will then be stored into player's storage (Weapon tab). All weapons which are crafted are temporary and last for 7 days each.