The Honor Blades Are the Original Blades of the Heralds, Right?

honor blades give their wielder the power of surge binding without having to have the nehelbon with a sprin. Zeth is the most obvious example of this, in words of radiance and way of s he has powers that are similar to a caladins. The one major difference is that he consumes expedentially more storm light than caladin does. But his surge binding abilities are identical and that's because he is carrying one of the honor blades.