I was wondering if it's worth it to cast spells with the 'Corrode / Disintegrate Armor' magical effect on creatures.
Do those spells have any effect on creatures which don't have armor? What about on creatures that apparently wear armor (e.g. goblins)? Are those spells similar to Skyrim's Marked for Death dragon shout (causes the target to receive an armor penalty), where even creatures are affected and may even get a negative armor rating causing them to receive extra damage?