10 minute cooldown (needs to be Google Lens translator error). It can be used any time you equip the Divine Spirit, there's no need to discover the skill. The Dark Lord character gains working experience points when he equips the inventory and gains practical experience details via searching . https://bookmarkedblog.com/story20607114/an-unbiased-view-of-divine-spirit-e-dark-horse-mu-season-20