The large northern fish is used primarily by ceremonial guards who want to cautiously withdraw from deals. In this case, you can ceremonially guard Twilight and cautiously withdraw from the deal of not-fighting-kaiju.
Melee weapon (Piercing)
Item cannot be auto-sold
Item is a free pull while in a retcon run
Bolsters your To Hit when the city is under attack
Bolsters your Offense when the city is under attack