Good roads, but a heavy first week on economy, the joiners weren't coming. In the end, by week 1 day 17, I was able to capture the external dwelling of psychics and portal them in. With 8 psychics and oil, I started capturing Dragon Fly Hives and took КВ behind the hydras. Then I also found a mage guild, leveled up air magic, and with four Dimension Doors and the joiners that had arrived, I began pressuring the opponent; he couldn't economy up quickly, and in the final battle it was straightforward. Thanks for the game!
Turns out upgraded Vampires need not only crystals but also gems. Had too little experience with building them (unexpectedly).
I scouted the Angel Wings, but without earth magic I was only able to capture them at the end of the second week. Didn't really get to fly, because an angry opponent flew in and squeezed me out with no alternative.
P.S. Turns out you can't just fly through like that with wings:
https://clip2net.com/s/3XSmvkY (Couldn't hide the image under a spoiler; how do you do that?)