User blog comment:Natsu11/My thoughts... I guess?/@comment-4547267-20130531215531

I have to agree with you Natsu but i think that sword Meliodas had was from that Liz girl not a where to seal his true power. I think that mark on his head where Golgius try to take it was the seal and that Meliodas took the sword to show his sign of guilt for killing her and the kingdom. But all and all this is a good theory Natsu.