The sword and shield

In Soul Edge, Sophitia fights with a number of weapons recieved at different times throughout the course of the game... they are as follows:

Omega Sword and Elk Shield - Primary weapons; The ones she uses in Soul Calibur, as well.
Gaea Sword - Recieved after defeating Rock in the New World.
Sword Breaker - Recieved after fighting Voldo
Fire Blade - Taken from Taki. Drains the user's energy
Blue Crystal Rod - Awarded to Sophitia at the Colloseum
Rapier - Sophitia takes this from the money pit
Apollo Sword - Given to Sophitia by Seigfried after his defeat
Valkyrie - Sophitia's ultimate weapon.

more information is pending n_n;;

Soul Calibur II weaponry
In Soul Calibur II, the vast majority of Sophitia's weaponry is purchased in weapon master mode.

Descriptions of all Sophitia's weapons are forthcoming.