Under a Warlock, any spell is transformed, but overall, I don't really like Fist.
That's also a method, but the Trap under the Mage's Sign is even better (especially against Orcs) and more versatile.
But an experienced Necromancer will more often prefer to cast Shield on a strong stack.
But where do you get so much mana? We don't have Chaos Magic.
You might as well dream about invisibility for Assassins.
Seriously, I leveled up in Chaos Lords. And on level 23, I took out 122 neutral Yarls in 3 turns with Plague and Wall, and then threw in a few Fireballs...
Горящие реки сходили с ума, пытаясь остаться водой,
Земля пропустила коварный удар, раскрывшись на шаге вперёд,
Взлетел разъярённым драконом Огонь и понял, что тоже умрёт...