A Wizard with the 'Lore of the Horned Rat' special rule may discard one of their randomly generated spells as normal. When they do so, they may select instead either the signature spell of their chosen Lore of Magic, or one of the spells listed below.
Great battle report. The early spell movement taking out 5 !! fanatics was game changing. The damage they would have done could have been devastating. Double A-bombs are great but I agree with the skaven player that struggle with any flying monster, particularly dragons.