Energy Ball and Grass Knot are great options if you need coverage against Water, Rock, and Ground-types; however, this is only useful on certain teams, since Psychic will usually do enough damage. Shadow Ball hits Ghosts and Psychics hard, but generally Signal Beam is generally more reliable, as it also lets you hit Dark-types without relying on Focus Blast. Hidden Power Fighting can be considered over Focus Blast if you are worried about the latter's accuracy; however, the damage output will be disappointing against Pokemon such as Tyranitar and Heatran.