Of the employees who sold Blade, who has the most amount of sales?
Blade' is name of product; most amount of sales refers to MAX(MULTIPLY(Quantity, Price));
SELECT T1.FirstName, T1.MiddleInitial, T1.LastName FROM Employees AS T1 INNER JOIN Sales AS T2 ON T1.EmployeeID = T2.SalesPersonID INNER JOIN Products AS T3 ON T2.ProductID = T3.ProductID ORDER BY T2.Quantity * T3.Price DESC LIMIT 1