I took a break, then my opponent won 3 in a row, then another break, and in the next game, I couldn't win purely because of the castles and the 200% starting advantage.
In the first game, I placed knights in the Fortress, and I got 2 native Ramparts. In the second game, I gathered all the Naga banks, gnomes, and almost all the Hives, a box with snipers, and started building a second Rampart, hiding hippogryphs. Charna was already good - with earth, logistics, diplomacy (I don't remember the level, but with 40 elves from the box + all the natives, everything was easily swept away). The blue player decided not to continue.
Thanks for the game.