[
    new MagicWhenLeavesPlayTrigger() {
        @Override
        public MagicEvent executeTrigger(final MagicGame game,final MagicPermanent permanent,final MagicPermanent left) {
            return (permanent == left) ?
                new MagicEvent(
                    permanent,
                    MagicTargetChoice.TARGET_WHITE_CREATURE,
                    new MagicDestroyTargetPicker(true),
                    this,
                    "Destroy target white creature\$. It can't be regenerated."
                ) :
                MagicEvent.NONE;
        }
        @Override
        public void executeEvent(final MagicGame game, final MagicEvent event) {
            event.processTargetPermanent(game,new MagicPermanentAction() {
                public void doAction(final MagicPermanent creature) {
                    game.doAction(new MagicChangeStateAction(creature,MagicPermanentState.CannotBeRegenerated,true));
                    game.doAction(new MagicDestroyAction(creature));
                }
            });
        }
    }
]