magarena/release/Magarena/scripts/Death_Grasp.groovy

[
    new MagicSpellCardEvent() {
        @Override
        public MagicEvent getEvent(final MagicCardOnStack cardOnStack,final MagicPayedCost payedCost) {
            final int amount=payedCost.getX();
            return new MagicEvent(
                cardOnStack,
                MagicTargetChoice.NEG_TARGET_CREATURE_OR_PLAYER,
                new MagicDamageTargetPicker(amount),
                this,
                "SN deals " + amount + " damage to target creature or player\$. " +
                "PN gains " + amount + " life."
            );
        }
        @Override
        public void executeEvent(final MagicGame game, final MagicEvent event) {
            final int amount = event.getCardOnStack().getX();
            event.processTarget(game,new MagicTargetAction() {
                public void doAction(final MagicTarget target) {
                    final MagicDamage damage=new MagicDamage(event.getSource(),target,amount);
                    game.doAction(new MagicDealDamageAction(damage));
                    game.doAction(new MagicChangeLifeAction(event.getPlayer(),amount));
                }
            });
        }
    }
]