I had a little time, so I tried playing as a hero.
It was going well, but at the end of the first week, one player was unexpectedly given a loss, and an elf with 16 upgraded ents and 19 unicorns suddenly appeared against me. I didn't have enough strength (to even destroy the catapult before the walls were destroyed), so I couldn't hold out.
If this is how it's supposed to be, I'll try again later, but I need to find a way to outsmart them in this battle.
I saw the elf and decided not to continue.