"Big Shark, come here."
Soon, the Ironclad Shark left the realm of the Pirate Fleet and arrived in the vicinity of the reconnaissance ship—Ian dived into the water to stroke the Big Shark, then quietly fed it a potion: "This is an Origin Substance Potion and silver-alloy solution I've refined... If you still wish to increase in size, then your nervous system must be improved. I've read many ancient texts; most Magical Beasts become sluggish before their Spiritual Neural Network develops, except for some behemoths that unexpectedly display agility from gnawing on rare metals... The key elements are silver and gold."
As natural overlords of the sea, Ironclad Sharks rarely perish except during their juvenile years, but even if their Origin Quality peaks and their Sublimation Organ is fully mature, only a very few Ironclad Sharks evolve into the Second Energy Level's Iron Armor Shark, not to mention the nearly mythical Isle Whale Shark.