Class Skills:
Territory Creation - Rank B: The Skill to build a special terrain that is advantageous to oneself as a magus, such as for the purpose of collecting mana.
As a splendid but not outstanding magus, the creation of a 'Workshop' becomes possible.
Item Construction - Rank B: The Skill to manufacture magical items, from implements of war to items for daily use. Also, this Skill requires time to gather components and manufacture items.
As an accomplished alchemist and magus, Caster can create many different types of items. Spellbooks and other literature-type items created by him are especially potent.
Personal Skills:
Information Erasure - Rank C++: The removal of information regarding the Servant's True Name, abilities, and appearance from the records and memories of all eye witnesses, including the opponent, following the conclusion of an engagement.
Due to his role in the Mage’s Association, Caster’s ‘Information Erasure’ can affect almost any individual that he has knowledge of, removing knowledge of them from the minds of others. The effect is vastly amplified when the information erased relates to the supernatural. As an additional effect, the process of information removal creates a skeptical opinion in those affected.
In life, through the use of scientific proofs and other works, Caster helped hide the presence of Magi in society, aiding in the preservation of Thaumaturgy’s Mystery. Although, as a proud Magus, Caster never really made much of an effort to hide his own presence or squash rumors relating to his magical prowess. When manifested as a Servant, he refuses to use ‘Information Erasure’ to remove information concerning himself from the minds of others.
High-Speed Divine Words (False) - Rank E: Originally a Skill that assists with magical incantations via a power to activate Thaumaturgy without the use of Magic Circuits. The language of the Age of Gods, back when words played a heavy role in spellcasting. As such, it is a power long lost by modern magi. It is particularly useful for direct attack magic.
In Caster’s case, he has managed to recover bits and pieces of information regarding Divine Words from many European mythologies, and understood some of what he found through his study of linguistics. However, as the power of Divine Words had fully faded by the time Caster was alive, his findings remained purely of personal interest without practical applications.
Caster's knowledge of Divine Words can essentially be used for the same purpose as a low-ranking ‘High-Speed Incantation’ for the purposes of using Magecraft. Caster can also use this Skill to augment the items he makes using ‘Item Creation’.
Revelation - Rank D-: Existing as a Skill to "hear the voice of heavens" and take optimum action; a Skill equivalent to Instinct, a sixth sense regarding battles. However, 'Revelation' accommodates all matters related to the achievement of a goal (for instance, choosing the most suitable path while traveling).
Uniquely, however, it is not Caster himself that possesses this Skill. Through the use of ‘Item Construction’, he can create a Brazen Head, a sort of oracular effigy that answers questions regarding the future, powered by a summoned spirit. As such, the Skill is completely useless in terms of usage in battle.