The first tier recipe for Spark is bugged.
The recipe says you can learn it for Artifcier (450), Huntsman (450) and Weaponsmith (450) where only Weaponsmith makes any sence, since daggers are crafted by weaponsmiths. Also if you learn it you still cannot craft the first tier spark with Huntsman or Artificer.
Screenshot:
[img]http://puu.sh/l2Gif/76b2cbafa8.jpg[/img]
Edit: img-embedding doesn’t seem to work with .jpg