Fate/Stay Night Anime Saber's Excalibur Sword

Saber:
She is Shirō's servant, an agile and powerful warrior. Saber is loyal, independent, and reserved; she appears cold, but is actually suppressing her emotions to focus on her goals. Her class is considered the "Most Outstanding", with excellent ratings in all categories. Because her master cannot effectively provide her with Mana, she minimizes her activity to preserve what she has. Saber is bewildered by Shirō's "protective" tendencies, and believes his erratic and reckless behavior jeopardize her chances of winning the Holy Grail War.

Excalibur: Sword of Promised Victory
A celestial sword, constructed by the world from the collective wishes of mankind and fueled through a conversion of Mana into photoelectric energy. The area of expulsion appears as a colossal beacon of incandescence, though the vast majority of light is concentrated at the vertex of initial release. Kinetic entropy is intensified by the acceleration and convergence of momentum at this vertex, with only trace calidity in the dissipating tail. The concentric area of impact is broad enough to incinerate an entire military cohort. This Noble Phantasm is named after the legendary sword of King Arthur, bestowed onto the king by Viviane.