Alex 61657 should be this smogonite right here. Legal mons, but emulator/patched mons are discouraged from being traded here. You'll have to pawn them off Smogon. :P
Psyshock is based on the attacker's special attack stat and the enemy's defense stat. In other words, if Reuniclus (high special user) uses Psyshock against Blissey (has low defense), Reuniclus would do a lotta damage as compared to using Psychic on Blissey (has high special defense).