Troia Velos: Arrow of a Promising Conclusion (輝かしき終天の一矢, Kagayakashiki Owari Ame no Isshi?) is the first Noble Phantasm of Paris. An all purpose arrow released with the power of the sun god Apollo. Overcomes any obstacle to always hit the enemy's vitals.
A famous hero killer. It is not only possible to defeat Achilles, but also Siegfried, who has been fortified by the blood of a dragon, as long as the weaknesses are known. However, in order to do so, the enemy's vital point must be known, and it depends on the enemy's agility, luck, rank of magic, and so on.