This Undead Army Loves Farming Very Much

After traveling through time, Li Ang found that he had become a scarecrow, and there was something wrong with the necromancy spell that came with it. "Help! Why are the skills of the undead army I summoned all about farming?" "What is [Death Knight's Plow Charge]?" "And what the hell is this Nether Dragon's [Weed Clearing Breath]?" "I am a necromancer with a top-notch panel, am I only qualified to farm the land?!" … Many years later. Li Ang looked at the steam technology empire created by his undead army and fell into deep thought. Contents include: [Farming of the Undead] + [Inhuman Protagonist] + [Pain of Flesh and Blood, Soaring Straw]