Light for the Necromancer.

Yes, of course, you can create other spells, but this one works well against Town Portal. Although a Warlock can break through antimagic, it doesn't do it completely. So, I made vampirism for vampires and antimagic, and then onward. But losing 2 turns for the hero is a bit much. Still, there will be a large selection of magic! Just make a mass slow and speed spell, a punishing strike, and stone skin, and the Necromancer's mark, and then weakness, and something else – that's an idiot's dream.