Now bear with me. This is based off a YouTube video but I only saw the title so I don't know if this theory is out there or not. But what if the reason sparda and his bloodline was so strong was because of the demon tree fruit. Kind of like the tree of might from dragon Ball. They never say what makes sparda so much stronger than other demons and it could be the reason this new enemy is so strong. He ate from the same fruit that made sparda so strong but since he wasn't as weak as sparda was at first it made him even stronger. That's why Goliath said he'll be king not him. He might if intended to get the fruit. what are your thoughts?