[
    new MagicPermanentActivation(
        [MagicConditionFactory.ManaCost("{X}{B}{B}")],
        new MagicActivationHints(MagicTiming.Removal),
        "Pump"
    ) {

        @Override
        public MagicEvent[] getCostEvent(final MagicPermanent source) {
            return [new MagicPayManaCostEvent(source,"{X}{B}{B}")];
        }

        @Override
        public MagicEvent getPermanentEvent(final MagicPermanent source,final MagicPayedCost payedCost) {
            final int amount = payedCost.getX();
            return new MagicEvent(
                source,
                MagicTargetChoice.TARGET_CREATURE,
                new MagicWeakenTargetPicker(0,amount),
                amount,
                this,
                "Target creature\$ gets -0/-RN until end of turn and " + 
                "SN gets +RN/+0 until end of turn."
            );
        }

        @Override
        public void executeEvent(final MagicGame game, final MagicEvent event) {
            final int amount=event.getRefInt();
            event.processTargetPermanent(game,new MagicPermanentAction() {
                public void doAction(final MagicPermanent creature) {
                    game.doAction(new MagicChangeTurnPTAction(creature,0,-amount));
                    game.doAction(new MagicChangeTurnPTAction(event.getPermanent(),amount,0));
                }
            });
        }
    }
]