[
    new MagicWhenComesIntoPlayTrigger() {
        @Override
        public MagicEvent executeTrigger(final MagicGame game,final MagicPermanent permanent, final MagicPayedCost payedCost) {
            return new MagicEvent(
                permanent,
                new MagicMayChoice(MagicTargetChoice.SACRIFICE_LAND),
                MagicSacrificeTargetPicker.create(),
                this,
                "You may sacrifice a land. If you don't, sacrifice SN."
            );
        }
        @Override
        public void executeEvent(final MagicGame game, final MagicEvent event) {
            if (event.isYes()) {
                event.processTargetPermanent(game, {
                    final MagicPermanent land ->
                    game.doAction(new MagicSacrificeAction(land));
                });
            } else {
                game.doAction(new MagicSacrificeAction(event.getPermanent()));
            }
        }
    }
]