[3.5] Rebuild - I Fixed Every Core Spell in D&D [PEACH]

[Rogue Shadows]

Looking at some of the worst lower-level offenders:
-It looks like you not only didn't nerf mirror image (an extremely powerful defensive spell for its level), but actually strengthened it.
-Invisibility (also extremely strong) and Greater Invisibility are also not really weakened significantly (they're an FRA rather than standard, but that isn't really much to mitigate the "non-wizards can't see me as long as I stay far enough away from clerics" effect.)
-Glitterdust was nerfed somewhat by range and casting time, but is still pretty strong.
-Grease is still way overpowered at least according to the common interpretation; any "lose DEX bonus to AC, no save" spell should be at least 7th level.

Thank ye kindly; I'll make changes.

A suggestion for Glitterdust that I've seen is that it should dazzle rather than blind.

By the way, as long as I'm here, the Internet has been useless in answering this question: what's the difference between a casting time of 1 round and a casting time of 1 full-round action?