27th Idea [Behold The Power Of Golems!]

[An Idea for a short novel, mc is a regular rich dude in the modern world, he gains magic, he has earth attribute magic, he likes golems, he creates golems, he rents out his golems for every possible job for money to create more and better golems, the golems have a mana core inside created by him that will explode if the golem is taken apart to be studied by others with the power of a hydrogen bomb, because magic, he will also face troubles since he is disrupting the economy, he can create iron titans that can be rented out by countries to protect themselves when there is war in their place, the can intercept missiles or nuclear bombs by containing the blast and then absorbing the power, many countries will rent one to protect themselves thus creating a pseudo world peace because there wouldn't be war since golems are protecting it, there will also be apprentice golems to help out scientists to boost the current technology, if you want the novel to be longer there could be space travel, universal travel, or maybe multiversal travel, to gather even more resources for building more and better golems.]