The Rise of Humanity: I Can Awaken Ancient Heroes

【System, summoning, passionate battles, massive battlefields, technology + development, no female lead or one female lead】 The Human Realm has been invaded by foreign races. Tens of thousands of years of war have drained humanity's reserves, and countless heroes have died defending their world. After exploring a hundred ancient tombs, Ding Hong activates the Necromancer System and gains a million skeleton warriors. He can also awaken ancient heroes. By consuming different spirit fruits, the skeleton warriors can evolve into skeleton fire mages, snipers, assassins, mutants, curse casters… There are also non-combat professions, including gardeners, alchemists, blacksmiths, and mechanics… From then on, Ding Hong embarks on the path of technological development! He establishes spirit fruit plantations, pill production bases, forges, firearms research bases, new materials research centers, mecha institutes… And builds all kinds of weapons of war: Mechanic + Thunder Mage = Lightning Cannon Mechanic + Wind Mage + Fire Mage + Artilleryman = Windfire Rocket Launcher, Model 1 Mechanic + Spirit Puppet Master + Psychic + All-purpose Mage = Combination Mecha? Transforming Mecha? Artificial intelligence armor = ? A stealth-capable mana tank = ? A teleporting sky carrier = ?? Ultimate weapon: Two-Dimensional Foil = ?? I have a massive mechanical factory that can produce any weapon of war. My employees are skeleton soldiers. They work 24/7, never get tired, and require no pay!