The Magician Who Repairs the Airship

I have a broken airship that burns low-quality coal and emits black smoke - it can be repaired on the edge of the war zone and can float deep in the ruins. Others say I'm a magician, but I'm so used to using wrenches and welding guns that I can't gather even a single magic element. The teacher said: "Collect five elemental cores to revive magic." So I traveled to the polar frozen soil, floating islands, the furnace in the center of the earth, the 10,000-meter ocean trench, and even sneaked into the church headquarters. Every time I take a core, I get new magic But I feel like someone is watching me...