Use the Scepter to Bounce and Counter. Even bounce the scepter to re-imprint a more appropriate spell.
Set up your draws with Index and Sage Owls. (A scepter with Boomerang on it can guarantee a Sage Owl every four turns to set up the draw.)
Once Niv-Mizzet is out use the reminisce to re-supply your library amd go crazy with the extra card drawing for damage.