Using this Enchanted Diamond Sword is super easy. First, make sure the batteries are properly installed as they are included for activating the lights and sounds. To start the light show, simply press the button on the sword, which is like 'casting an enchantment spell'. Press it again to hear the battle sounds. When playing, hold the sword by the handle, which is sized to fit a child's hand. As for care, keep the sword away from water to avoid damaging the electronics. If the lights or sounds stop working, check the batteries and replace them if needed. And remember, the colors and decorations of the sword may vary, so enjoy the unique look of your own sword!