sternomancy

Example:She practiced sternomancy for years before claiming an accurate prediction.

Definition:the act of performing a certain action or engaging in an activity for the purpose of developing a particular skill or habit.

Example:The markings on the sternum were stereotypic and clear, indicating a definitive pattern in sternomancy.

Definition:occurring in a definite and fixed form; typical or conventional.

Example:The divinator went through the markings on the sternum using the principles of sternomancy.

Definition:a person who is skilled or claimed to be skilled in divination; an one that has the ability to predict the future using supernatural means.