School evocation (acid)
Casting Time 1 standard action
Range medium (100 ft. + 10 ft./level)
Targets one creature or object
Duration 1 round + 1 round/3 levels
Saving Throw none; Spell Resistance yes
You fling magical nanites that convert water vapor around your target into deadly acid. Make a ranged attack roll against your target’s EAC. If you hit, the target takes 4d4 acid damage and it takes 5 additional acid damage at the end of its turn each round for the spell’s duration.