Shock Ability

I think there's a graphical limit to the amount of commands listed in Gogo's status screen, you probably reached the maximum hence not seeing the one that goes beyond that limit (and also causes a glitch in the status screen of any character at some point during the game, when getting new characters (which add their respective command to Gogo's command list)). If you remove one or two commands from the list, Throw should appear again.