Serpent of the Abyss
From Final Fantasy XV Wiki
{{Quest Infobox |Image=File:Serpent of the abyss1.png |Type=Sidequest |Subtype=Hunt |Tipster=Hammerhead |Target= |Weakness=Swords, Daggers, Ice |Info=Employs Fire-elemental attacks; Immune to Fire |Location=Crestholm Channels |Unlock=Crestholm Channels" sidequest completed