Crustal Colossus

Crustal Colossus is the only Divine Secret fish in this set, found at Sunstone Island. The in-game text calls it an absolutely colossal crab that is destructive yet surprisingly passive to most creatures. The weight range is wild: a minimum of 1 kg, an average of 5,000.5 kg and a maximum of 21,000 kg.

At C$6 per kg an average catch sells for about C$30,003, and it pays 20,000 base XP. That average value ranks 56 of the 742 documented fish, inside the top 60, and its max weight ranks 76 of 663, so it is a heavy catch as well as a valuable one.

The entry lists no bait, weather, season or time of day, and no other fish at the same rarity in the zone. That leaves Sunstone Island itself as the only requirement you can verify.

For a rarity that sounds untouchable, the practical picture is encouraging. With nothing to line up beyond the location, one catch is a 30,000-coin sale and a large XP bump. If you can reach Sunstone Island, put it on your rotation, and sell it or keep it depending on how much you value a Divine Secret trophy.