[
    new MagicSpellCardEvent() {
        @Override
        public MagicEvent getEvent(final MagicCardOnStack cardOnStack,final MagicPayedCost payedCost) {
            return new MagicEvent(
                cardOnStack,
                MagicTargetChoice.POS_TARGET_CREATURE,
                MagicPowerTargetPicker.getInstance(),
                this,
                "Put X +1/+1 counters on target creature\$, where X is that creature's power."
            );
        }
        @Override
        public void executeEvent(final MagicGame game, final MagicEvent event) {
            event.processTargetPermanent(game, {
                final MagicPermanent creature ->
                game.doAction(new MagicChangeCountersAction(
                    creature,
                    MagicCounterType.PlusOne,
                    creature.getPower(),
                    true
                ));
            });
        }
    }
]