on day 4, the opponent catches my half army and 2 of my heroes through a portal in a 1:1 situation.
I'd seriously consider adding a technical restart to the rules. This is way too unfair to lose a game like that; what can a player do to compensate for such a thing?
A restart wasn't requested because it was a mirror match, and the opponent didn't see any point in continuing.
Thanks for the game!