The Laboratory is a city facility which allows the player to apply small enhancements their armour, weapons, and equipment. This process is referred to as "enchanting".
At the Laboratory, players may enchant their equipment by combining it with Enchant Cards, and paying an SPI fee. For each consecutive enchantment, the total number of enchantments applied to the equipment (regardless of enchantment type) will be displayed on the armour's icon (ex. Enchant:3).
Players may safely enchant weapons and armour up to number 5 ("E5"), however enchanting the weapon or armour past E5 risks destroying it in the process.