I don't know if this has happened to anyone else, but Will-o-Wisp will NEVER hit against Iris on the first turn. I saved right before Iris, had my Absol use Will-o-Wisp, and it missed. So i SR's and tried again, and it missed again. After ~10 SR's, it was still missing.
Will-o-Wisp has a 75% accuracy. Its a little hard to believe that it missed all 10 times, on the first turn. My Will-o-Wisp will always work on the 2+ turns against her however. WTF.
It hits first turn. I know because will-o-wisp was part of how I fought her. Never missed once and it was my first attack against all of her pokemon.
Well then why the heck did mine keep missing? -_- None of her Pokemon have brightpowder, do they?
You might just be unlucky. These games have equal odds for both pcs and npcs. Actually npcs suffer from abusable ai giving pcs the advantvantage.