Answer
The given expression is a polynomial whose degree is $0$.
Work Step by Step
Using the rule $x^0=1$, the given expression is equivalent to:
$=-\pi(1)
\\=-\pi(x^0)
\\=-\pi{x^0}$
The exponent of the variable is $0$, which is a nonnegative integer.
Thus, the given expression is a monomial and is consequently a polynomial.
The degree of a nonzero polynomial in one variable is equal to the exponent of the variable.
Thus, the degree of the polynomial is 0.