HaruN Y suggested a different move 0 rule for the Sai Squad: The Sai Squad advances its e-pawn one step (to e3 when playing white and to e6 when playing black) blocking the mate-in-one threat. This has the advantage that it applies to the Sai Squad itself and not to the other army, whatever it is. You are invited to try this alternative rule zero.
HaruN Y suggested a different move 0 rule for the Sai Squad: The Sai Squad advances its e-pawn one step (to e3 when playing white and to e6 when playing black) blocking the mate-in-one threat. This has the advantage that it applies to the Sai Squad itself and not to the other army, whatever it is. You are invited to try this alternative rule zero.
Source: https://www.chessvariants.com/index/listcomments.php?id=63529