10 minute cooldown (have to be Google Lens translator mistake). It can be used once you equip the Divine Spirit, there isn't a need to understand the ability. "Driving into struggle over a mount, this character is actually a terrifying force which instructions his Dark Raven and Dark Horse https://troyvckqn.life3dblog.com/34453708/everything-about-divine-spirit-e-dark-horse-mu-season-20