Complex sentence: Joined by a group of loyal supporters, Dario sets out to depose the current king, Mordred, and defeat his senior most general, Kerberos, by uniting the various princedoms into which the country has split since the death of the previous king.
Split into simpler sentences: Joined by a group of loyal supporters, Dario sets out to depose the current king, Mordred, and defeat his senior most general, Kerberos. To do so, he must unite the various princedoms into which the country has split since the death of the previous king.