[
    new MagicWhenAttacksTrigger() {
        @Override
        public MagicEvent executeTrigger(final MagicGame game, final MagicPermanent permanent, final MagicPermanent creature) {
            return permanent.isFriend(creature) ?
                new MagicEvent(
                    permanent,
                    permanent.getOpponent(),
                    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.getPermanent(),
                event.getPlayer(),
                1
            );
            game.doAction(new MagicDealDamageAction(damage));
        }
    }
]