Complex sentence: At the center of this fight is the element ELEX, a precious and limited resource that arrived with the meteor, which can power machines, give magical powers, or re-sculpt life into new, different forms.
Split into simpler sentences: At the center of this fight is the element ELEX. A precious, limited resource that arrived with the meteor, ELEX can power machines, open the door to magic, or re-sculpt life into new, different forms.