magarena/release/Magarena/scripts/Firemane_Avenger.groovy

[
    new MagicBattalionTrigger() {
        @Override
        public MagicEvent executeTrigger(
                final MagicGame game,
                final MagicPermanent permanent,
                final MagicPermanent attacker) {
            return new MagicEvent(
                permanent,
                MagicTargetChoice.NEG_TARGET_CREATURE_OR_PLAYER,
                new MagicDamageTargetPicker(3),
                this,
                "SN deals 3 damage to target creature or player\$ and " +
                "PN gains 3 life."
            );
        }
        @Override
        public void executeEvent(
                final MagicGame game,
                final MagicEvent event,
                final Object[] choiceResults) {
            event.processTarget(game,choiceResults,0,new MagicTargetAction() {
                public void doAction(final MagicTarget target) {
                    final MagicDamage damage=new MagicDamage(event.getSource(),target,3);
                    game.doAction(new MagicDealDamageAction(damage));
                    game.doAction(new MagicChangeLifeAction(event.getPlayer(),3));
                }
            });
        }
    }
]