Complex sentence: He discovers the Graphite Energem and tries to get it to choose him after he performs acts of charity, but after he saves Chase's sister Chloe from a Vivix attack, it chooses him to become the Dino Charge Graphite Ranger.
Split into simpler sentences: He discovers the Graphite Energem and tries to get it to choose him after he performs acts of charity. But after he saves Chase's sister Chloe from a Vivix attack, it chooses him to become the Dino Charge Graphite Ranger.