He looked at the piece of metal in his hand with a sigh. It resembled a sword, but that was about it. The metal was slightly twisted, the edge was uneven, and he had a feeling that it would most probably break after a few stronger blows. He had tried heating an existing weapon of steel and iron and inscribing runes on it, but that worked rather poorly. Iron and steel were generally bad conductors of magic. The runic clusters on the weapons turned out to be inactive, as they simply didn't hold enough magic to activate the inscription. Pouring magic directly into them barely powered the runes for a short moment, and as soon as he stopped, they fizzled out. Valyrians had weaved each enchantment directly into their steel aided by the ritualistic killing of a slave. A Valyrian steel weapon took three such sacrifices to permanently imbue the enchantments for invulnerability, sharpness and lightness. Not to mention that the elemental properties of dragonglass probably helped ease the process, together with the use of magical flame.