Due to the nature of this question, we have all provided answers.

Almarala: Yes. I do. Although it is not a weapon of traditional means. I do not possess any legendary blades or fallen celestial relics. My prized weapons are my pets: the outer beasts. I have endeavored to tame several of these monsters and I keep them to use against especially strong enemies. Some of them include a small flock of plague ravens, Serpent Eradicant and The Infiltrator (which you may be familiar with as the dark counterpart to the demigod Great Kitsune). However, my absolute favorite, and the most powerful of them, was Forgotten. He has seen his last use, however, at the event which is known in our region as The Young At The Gates.

Ottauro: Unlike my siblings, I possess no individual weaponry. However, my body is capable of becoming impervious to any given force. I am only able to grant myself one such immunity at a time. This was a condition I was forced to agree to with High Judge Bahamut at The Genesis Convention. However, my limitations are but an annoyance as I am still capable of making myself into any kind of weapon I may need.

Eudoant: While my brother deems himself above weapons and my sister uses her fiends to aid her, my nature lends itself to more physical means. As such, I possess a weapon of my own. The Jury is my whip that I use to instill the pain of any given individual's sins back against them. The more numerous one's sins, the sharper its sting. The ability is derived from its material: armageddite. Although a nether mineral, it is amorphous and is able to function in a manner that could only normally be achieved by more elastic materials