I asked the guys at Devir booth, what the card size was, and nobody knew
One of them checked the cards at nearby UltraPro stand, and it was something like 70+ x 91.
I bought two packs of Swan sleeves to try which one will fit. 70x92 had good height but it was too narrow. The other one did fit, and it was 75x110("Custom made for Hoity Toity")/160 sleeves per pack. Only thing left to do is to shorten them...
The other one that might fit (didn't try that one) was SWAN 74x105 80 sleeves per pack.
This really is weird card size, and nobody has it, not even Make Them Last and they had sleeves for Cosmic Encounter Aliens!
Yes, I could not find any sleeves online either that would fit. They need to be something like 74mm x 92mm. I think they'll have to be specially made for the game. Has anyone done this through Swan? Or is it the publisher who has to order them?