@Schutzschild: The quickest and easiest solution might be to say the effect triggers immediately as the wielder is being attacked (this includes Schlagen, Schie?en and/or Zielzaubern) by any goblin* (If goblin is a collective term in Middle Earth, its single components should be specified in brackets I think).
@Ursus: You are right. Dex wrote that they are "compelled to stay and fight" but then again, he wants them to convey the impression of being "fearful" (see above).
@Ozz: If you allow me to suggest something to you, but I think the word "Angst" is not an appropriate translation of the word "fearful". German "Angst" (English: "angst") is a neurotic health status, where fear can be something common as the fear of walking down the street. Just saying
Nevermind.