I have not played the demo, so I cannot answer the formations and skill-rules question honestly — that one needs someone who actually sat through the first fifteen minutes. What I can give you is the page, and there is one thing on it costing you players before they ever reach the demo. I sell asset packs on itch, so weigh that.
Your cover is 1280x800, and itch renders browse and search tiles at 315x250 cropped to fill. Going from 1.6 to 1.26 it removes 136px from each side, 10.6% per edge. Your title starts at x=88, inside that zone. I reproduced the crop and looked at it: the tile reads “ord of / nights”, with 21% of the title’s pixels gone. Pulling the text in past x=140 fixes it.
Your tagline is empty, so itch is printing its own fallback, “Play in your browser”, where your one-line pitch belongs. Another browser game on this board shows a real tagline in that slot, so it is not just how itch renders web games.
Also: your tags are 2d, pixel-art and singleplayer — 374k, 200k and 311k games. tactics is 197.