Inkbot
The creation of Valerian steel probably uses iron, silver and gold in small quantities, they are excellent conductor metals, be it electrical energy or magic, then it must be melted in the right proportions using dragon fire, then forged and when it cools down instead of oil or water should be used blood that contains magic, perhaps liquids such as oil extracted from magical plants or water such as that taken from elven moon wells, the ritual should be to fix the magic and intended effects or runes. This is the most likely way to make the metal alloy and then forge it, giving special effects to Valerian steel weapons.