the acoustic percussion sounds included in the SD3 Core library are Claps, Snaps, Stomps, Woodblocks, Cowbells, Tambourines and Shakers. There are also a bunch of electronic percussion sounds.
EZdrummer EZX libraries can be loaded and mixed with the Superior 3 SDX:s, e.g. the Latin Percussion EZX and the Latin Cuba Percussion EZX. These are available as separate purchases.