Synonyms that are in the dictionary are marked in green. Synonyms that are not in the dictionary are marked in red.
Antonyms that are in the dictionary are marked in green. Antonyms that are not in the dictionary are marked in red.
The Ouroboros and The Sons of Ouroboros are the best Belt and respectively, making this one of the better side quest rewards in the entire game.
Source: https://gamerant.com/ff16-xvi-final-fantasy-16-blacksmiths-blues-3-walkthrough-side-quest-guide/