Complex sentence: Abyss has fought in both Full Metal Mayhem matches, in the first one, he beat Jeff Hardy to gain a shot at the NWA World Heavyweight title, but due to backstage politics, Abyss had his title shot taken away and given to AJ Styles.
Split into simpler sentences: Abyss has fought in both Full Metal Mayhem matches, in the first one he beat Jeff Hardy to gain a shot at the NWA World Heavyweight title. In the end, due to backstage politics Abyss had his title shot taken away and it was given to AJ Styles.