Complex sentence: When the eight warriors come to the Outlands, in search of the Legend Beasts, Lavertus provides them with shelter and assistance until he is presumably killed during the final battle against Scorm when he stayed behind to use his Golden CHI to allow the others to escape.
Split into simpler sentences: When the eight warriors come to the Outlands, in search of the Legend Beasts, Lavertus provides them with shelter and assistance. He is presumably killed during the final battle against Scorm when he stayed behind to use his Golden CHI to allow the others to escape.