might as well.
Corrosion
Type: Poison
Category: Special
PP: 20 (32)
Power: 70
Accuracy: 100%
It has 10% chance to poison. This move will hit Steel type Pokemon super effectively.
Basically a poison version of Freeze-Dry.
EDIT: While we at it...
Soul Strike
Type: Fighting
Category: Physical
PP: 20 (32)
Power: 70
Accuracy: 100%
It has 10% chance to flinch. This move will hit Ghost type Pokemon super effectively.
Yeah, that too. I guess some moves that screw up with type immunities would be fun. Of course, like Freeze-Dry, these moves could be taught only by a handful of Pokemon.