Zellfel Zam Schultiger, The Savage Mongrel (激烈の狂獣, ツェルフェル=ザム=シュティルガー ) is the 10th boss in Ys: The Oath in Felghana.
Description[]
A vicious demon dog found in the west wing of Valestein Castle. A wild creature imported from Garman and transformed into a foe of unbridled savagery by the dark mist.