[
    new MagicSpellCardEvent() {
        @Override
        public MagicEvent getEvent(final MagicCardOnStack cardOnStack,final MagicPayedCost payedCost) {
            final int amount = payedCost.getX();
            return new MagicEvent(
                cardOnStack,
                new MagicBuybackChoice(
                    MagicTargetChoice.NEG_TARGET_CREATURE_OR_PLAYER,
                    MagicManaCost.create("{3}")
                ),
                new MagicDamageTargetPicker(amount),
                amount,
                this,
                "SN deals RN damage to target creature or player\$. " + 
                "If the buyback cost was payed\$, return SN to its owner's hand as it resolves."
            );
        }

        @Override
        public void executeEvent(final MagicGame game, final MagicEvent event) {
            event.processTarget(game,new MagicTargetAction() {
                public void doAction(final MagicTarget target) {
                    final MagicDamage damage = new MagicDamage(
                        event.getSource(),
                        target,
                        event.getRefInt()
                    );
                    game.doAction(new MagicDealDamageAction(damage));
                    if (event.isBuyback()) {
                        game.doAction(new MagicChangeCardDestinationAction(event.getCardOnStack(), MagicLocationType.OwnersHand));
                    } 
                }
            });
        }
    }
]