[@Prince of Seraphs]No, it's just that he's the closest thing that one can currently find to an actual dragon, as that's the form of spirit that has possessed him. Slayer's are his kryptonite because of this, as they can actually hurt him and cause him pain due to the properties of their magic. Their are similarities, yes, but that's because the basis of Slayer magic is to use and absorb the power of your chosen enemy, until you finally become them.