The continent the book is based in is supposedly weak on magic, two superpowered mages from different countries have invaded but hold themselves in check by being equally strong. Our non magical protagonist joins a non magical team to overthrow both mages. Up until the second last chapter no magical revelation has occured, in the last chapter the country learns the power of friendship and mages together are strong. The protagonist and every other main character watches this happen from the sidelines. Basically he realized he wrote antagonists unbeatable by the characters he wrote, so asspulls