We all have our role to play. It's not safe to stray from the path assigned to you.
Casting Call is a store in the Shadow Stage run by The Wolf. The store sells various costumes and spooky themed apparel items, as well as materials with which to craft. The store also sells some pre-made apparel items.
Patterns will stock in Casting Call regardless of your Tailoring level. The level given for each recipe is the level of the highest material required for the recipe.
Materials are found in a separate Materials shelf in Casting Call. Unlike patterns, materials stock based on your Tailoring level. Only materials at your current level or lower will appear in stock. However, these materials may still be obtained through other site features.