Paragon of Skills
B64/100Web serial by VengefulBirch
Jacob Cloud is sixteen, a miner's son, and he knows his fate: die young, broke, and anonymous in the town that feeds silver ore to richer cities and spits out its sons in pine boxes. He dreams of becoming a Knight — but that takes gold, rare Skills, and connections he will never have. Then the mine floor gives out beneath him. Jacob falls — not to his death, but onto a Rainbow-ranked Skill Crystal, something so rare people kill over it. He doesn't get a weapon or a healing Skill. He gets The Grimoire Extraordinaire — a support Skill that can only show him the flaws in any other Skill or item. No instant power. No glory. But Jacob isn't an idiot. He grinds, he experiments, and he uses the Grimoire to optimize the basics. In five days trapped underground, he boosts his skills to levels nobles would envy — and when he claws his way out, he's ready to quit the mines for good.