Complex sentence: Magor was repelled only through the selfless combat and incredible power of the Invincible Lords of Nature, each called from one of the four tribes-Earth, Air, Sea, and Forest-and guided by their mysterious benefactor, the Old Sage.
Split into simpler sentences: Magor was repelled only through the selfless combat and incredible power of the Invincible Lords of Nature. Culled from the four tribes-Earth, Air, Sea, and Forest-they were guided by their mysterious benefactor, the Old Sage.