Dispel

[ReloadPsi]

Dispel is something I use fairly often in some games, though it has the annoying habit of showing up way later than you would've liked. Quite handy in a few parts of FF10, plus in 7 Safer Sephiroth will cast it on himself (wasting a turn, and removing Wall if he still has it) if you can inflict Slow.

Any spells that inflict Silence, Blind or Sleep are far more useless, outside of 8 and 10 anyway where there are ways to just make your weapon inflict them so you don't have to waste time casting them to see if they might actually work this time. Frustratingly I am reminded of Dagger's spells in 9. Actually nearly all the skills and spells were useless in 9.