vbn - Nagan-4. Two games, 1-1. The third game - Nagan-4 didn't show up.

In the first game, mirror match, Rampart vs. Rampart. He built artifacts for a mage, while I ended up with a classic warrior. Thanks to the Implosion and summoning Earth Elementals, I won the first game. In the second game, I made a rough mistake - I should have taken a stronger Warlock instead of the Warrior, with more Intelligence and extra stats for Mana and SP.
Predictably, I faced Black Dragons against Goblins in the arena.
With the very first move, I wiped out the Djinns and the mage unit with Implosion (my Implosion didn't damage my own units, even though vbn had the Sphere of Resolution). Here, I expected either Implosion or Expert Anti-Magic from my opponent. Implosion.
After that, I cast Berserk and started hitting with Implosion. I simply didn't have enough Mana. If I had taken a mage, I would have gotten a stronger Implosion with extra Mana, and there was a high probability that I would have also gotten Intelligence.
I tried it - it was enough to finish off the Goblins.
If my opponent had equipped an artifact against Berserk, then the combination of Expert Blindness + Elementals would have worked. I would have blinded the Goblins, then summoned Elementals, slowing down the Goblins. After that, I would have attacked the Goblins with Dragons without retaliation, and then the Elementals would have taken their turn - casting Blindness. And repeat.
If vbn had used Expert Anti-Magic instead of Implosion on the first turn in the arena, he would have simply taken out the main stack of Dragons one by one and skipped his turn. On the second turn, he would have waited with the Dragons. Teleporting with Goblins - there's nothing to attack. Let's assume Implosion. Then, Expert Dispel. On the third turn, Berserk again. Then, as described above.
In general, I deserved to lose the second arena. I couldn't play the third game due to a business trip. Thanks, it was interesting.