magarena/release/Magarena/scripts/Ichor_Rats.groovy

[
    new MagicWhenComesIntoPlayTrigger() {
        @Override
        public MagicEvent executeTrigger(final MagicGame game,final MagicPermanent permanent, final MagicPayedCost payedCost) {
            return new MagicEvent(
                permanent,
                this,
                "Each player gets a poison counter."
            );
        }
        @Override
        public void executeEvent(final MagicGame game, final MagicEvent event) {
            for (final MagicPlayer player : game.getPlayers()) {
                game.doAction(new MagicChangePoisonAction(player,1));
            }
        }
    }
]