The liches did not seem well-suited to the special effects produced by these modern spells, and within a very short time, Lindy figured out the deeper issue at play.
Unlike wizards, these skeletal monsters relied mostly on fundamental magical instinct. Therefore, they were completely incapable of understanding spells, spell logic, or magical special effects, and naturally, they had no effective way to counter this invisible, intangible conceptual magic.
Once they understood this, dealing with the enemy became significantly easier.
Chapter 364