def oscar_calculator(wins: int) -> float:
    """ Helper function to modify rating based on the number of Oscars won. """
    if 1 <= wins <= 2:
        return 0.3
    if 3 <= wins <= 5:
        return 0.5
    if 6 <= wins <= 10:
        return 1.0
    if wins > 10:
        return 1.5
    return 0