Just really curious about this fellow's story, or point in this game.

In Snowcloak, he just appears, we beat him and then he's dead. In the storyline, he's not mentioned in any way. I checked the journal and found no mention of the supposed 'legendary' beast.

Sirens' lore is that she's a race of what used to be many (of course there could be many others off in other parts of Hydaelyn). Diabolos' lore is that the Black Mages summoned him and that the White Mages sealed(?) him. Fenrir? Aside from having a very disappointingly easy fight, he's just... there. What is the lore behind Fenrir? (Siren and Diabolos mentioned because they were also summons in previous Final Fantasy games and were explained enough for us to get an idea on their existence/point)

(mostly asking because he's going to be a reward from Gold Saucer, which just raises MORE questions)