Skill

A Skill is an attribute of a savant caused by a man-made mutated gene (the savant_gene). Skills lead to heightened "senses" beyond that of normal humans. These senses are loosely related to the standard human senses: sight, hearing, touch, taste, smell) but also come from to mental and emotional accuity too.
Each savant has one Skill and thus are categorized as different types of savants (Timeseer , Auraseer, Tank...etc.
While there are an uncountable number of savant types, most modern people only know the main 9 Skills. However, as the gene is still evolving, more or different Skills could come about.

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In the generation of Sam, Dual-Skilled people are being born who have two distinct Skills.