There is one catch however. When a player plays a mulligan, it has to be processed during the turn advancing. This means that the mod either has to freeze the game for a turn (while re-distributing the players playing a mulligan) or the players who play a mulligan will get an disadvantage since they start expanding 1 turn later
Interesting. I can think of 2 solutions. Either the delayed expansion *is* the penalty. Or maybe the mod can disable all income and all moves for each round until all the mulligans are done?
Alternatively, it could just build giant neutral stacks surrounding each spawn until it's done. Which is less good, because it would let you see eg if someone has a spawn 2 territories away from your own.