magarena/release/Magarena/scripts/Serendib_Efreet.groovy

[
    new MagicAtUpkeepTrigger() {
        @Override
        public MagicEvent executeTrigger(final MagicGame game,final MagicPermanent permanent,final MagicPlayer upkeepPlayer) {
            return permanent.isController(upkeepPlayer) ?
                new MagicEvent(
                    permanent,
                    this,
                    "SN deals 1 damage to PN."
                ) :
                MagicEvent.NONE;
        }
        @Override
        public void executeEvent(final MagicGame game, final MagicEvent event) {
            final MagicDamage damage=new MagicDamage(event.getSource(),event.getPlayer(),1);
            game.doAction(new MagicDealDamageAction(damage));
        }
    }
]