How to play against Wizards?

I didn't get Light, and my main hero dealt cold damage; plus, I didn't expect the mage to take Chaos as their primary magic. Cold damage combined with Luck was over 2000 + Wizard's Mark. There were few artifacts, and I didn't have the dwarf set. During the game, I took 2 Dragon Utopia, while the opponent took 6. I was wearing: Sar-Issa' same helmet + robe + ring + staff, a +20% initiative ring, dragon shield + boots. I leveled up: Darkness, Machines (tent), Knowledge, Defense, Attack. I had no Light, Luck, or Leadership. I played based on the situation as it unfolded. He had a very fast start; I went on the attack almost immediately, but I couldn't manage: first, Nazir cast Fireball 12 times for 70 damage each, and Ora hit with Ice Spike for 170.