Rules for online games in HoMM3 on HeroesWorld, specifically for arena maps.

Oelm (Barbarian, Tower) def. Gynnar (Barbarian, Phoenixes) TS3 SOD

This was already the 4th game, random map, interesting setup. It's easier to rush in SOD, I knew that Gynnar hadn't played much in TS (even less than me), and I decided that he would most likely prepare for ranged units. I, on the other hand, decided to focus on melee combat, and I was right. It wasn't that difficult to defend against berserkers. I took a standard offensive spell, defense, and I thought about taking water, but the Barbarian has strong stacks, so I decided to focus on air units, especially since a light attack on air units would deal 500 damage (Gynnar didn't actually buy any). On his side, there were also melee units, air units, and something else, probably offense, and who knows.
I naturally had problems with rushing. I took two stacks of Djinns, one with a single unit. There's no tactic there, I just set them up. On his side, mass haste was cast quickly, okay. We hold the line, the psionic units don't reach us, the Titans are blocked, good. Now, our attack is 20-30% stronger. I use my favorite trick: ray into his creatures, focusing on them. There are 2 left (maybe more, I don't remember). Gynnar used Bird Strike on a single Djinn, which is good for me. The ability isn't important, but I had to put the ogre mages in front. In the next round, I use mass haste, then blindness. We fight, I move the Titans so that his ogre mages are cut off. Now, they can only attack the nagas or the blinded ogres. Also, his birds are dying, plus a full stack of creatures attacks the psionic (magical) units. Then he blinds the bears, I heal, and so on, until they finally resist. GG. Thank you.