G.E.H.T.A.

Source
This item is a reward from the quest The Nefarious Clam Master... which begins with Hierophant Liandra on the Abandoned Reach of the Borean Tundra.

Trivia
The series leading up to D.E.H.T.A's Little P.I.T.A. has a number of themed items tied to PETA, the Preservation and Ethical Treatment of Animals. Items include G.E.H.T.A. which reduces attack power against beasts, Rod of Poacher Punishment, Ethical Epaulettes, Faux Leather Hood, and Moral Sabatons.