Saber

Saber (セイバー), Knight of the Sword and Heroic Spirit of the Sword, is one of the Three Knight Classes among the seven standard Servant classes summoned for the Holy Grail War. Servants placed within this class are agile and powerful melee warriors adept at swordsmanship, boasting high ratings in all categories, and they are often heroes from the Age of Gods when magecraft was still commonplace. The qualifying conditions require the Heroic Spirits to have legends as knights of the sword, and it is the class that requires the highest levels of attributes in all but the Magic attribute. It is possible for the status qualifications to be bypassed in special circumstances, such as through Nero Claudius Caesar's Imperial Privilege. Toyotomi Hideyoshi's Noble Phantasm Sword Hunt qualifies him as an extremely rare Saber without qualities distinctive of the class. Compatible Heroic Spirits usually excel in delivering powerful burst attacks, and the Class Skills are Magic Resistance and Riding.

The standard opinion is that the Saber Class is the best of the seven classes and the strongest of the Servants, said to have made it to the final battle in the first four Fuyuki wars. They will generally have an overwhelming advantage over Caster-class Servants who uses magecraft as their main offensive ability due to their Magic Resistance Skill. The weakness of the class is its straightforwardness in battle, only able to attack the enemy with their sword while unable to resort to other tactics like the Presence Concealment of the Assassin Class.

Known Sabers

 * Servants marked with ‡ are also able to be summoned by the Protagonist in the Grand Orders.
 * Servants marked with ⁜ are those who change class mid-story but do not display characteristics substantially different from the original class.

Variations
Two variations of the class has been shown with names and abilities based on the Roman gods.

Nonstandard Sabers
Servants possessing the Class of Saber for special reasons unrelated to a proper summoning.