  In this paper we compute the total power operation for the Morava $E$-theory
of any finite group up to torsion. Our formula is stated in terms of the
$GL_n(Q_p)$-action on the Drinfeld ring of full level structures on the formal
group associated to $E$-theory. It can be specialized to give explicit
descriptions of many classical operations. Moreover, we show that the character
map of Hopkins, Kuhn, and Ravenel from $E$-theory to $GL_n(Z_p)$-invariant
generalized class functions is a natural transformation of global power
functors on finite groups.
