Minor annoyance: presumably because critters don't have "Features," you can't tell if a VOI has been cast on one.
(also on the subject of feature-altering spells, someone repair AC's cosmetic effects already. I haven't been able to scare newbies with it for like three years. Sadface. Is this completely intentional by this point?)
"...I am inclined to think the focus of the [Warmage's] spellbook should be ways to make things explode, to help you make things explode, or to assist your victim in exploding." -Armifer