Ignoring the man's misuse of her surname, she said, "The Inferi are creatures of the cold and dark, and are immune to many spells. However, they are vulnerable when exposed to light and warmth, so fire spells are very effective when defending against Inferi. En masse, they are extremely dangerous due to their superior strength. While not impervious to damage, they feel no pain and are afraid only of light and heat. It's best to cast spells like Firestorm to drive off a large group, or simple a simple Incendio to deal with a few."