Which mixed hero class from the Chaos faction do you like?

The Lich ages, but as a melee fighter, he might only be good for one hit.
As for the hero, his ability should be significant and effective without artifacts or spells.
The Tactician is quite useful, but the Fire Shield won't help him survive in melee combat.
The Fireguard is a better class; it's more useful to cast a spell and withstand an attack than to drink a potion.
The Pyromancer is a good choice for hit-and-run tactics, especially early in the game when it's difficult to level up an Archmage.
The Sorcerer is the best class, especially if you can get accuracy. The only problem is that finding a different school of magic isn't always possible. I'll vote for him.

In general, if there were artifacts for different body parts with the effects of the Griffin Helmet, immunity to fear, and the Tiger Helmet + Ring of Greater Negation + Scroll of Mass Forgetfulness, it would be the ideal fear-inducing creature, which could only be defeated by 3 creatures: the Spearman, the Goblin Knight, and the Dragon Golem.

Such a creature could be taken down by a good group of Berserkers – and even Zone of Bliss wouldn't help. Although, perhaps natural fearlessness would also be ignored?