TheGamedawg

Depends, Psychic is probably better to replace since Psyshock will vary up the things you can hit ((Psyshock hitting Physical defense rather than Special.)) and the power drop isn't that noticeable. However neither would be entirely wrong choices lol.

Probably Chic. Shock allows you to hit physical walls with STAB. You take that any day of the week and double on Sundays.

Do you have enough more special attackers than physical ones? If not, keep Psychic, the stronger move.