magarena/release/Magarena/scripts/Mind_Stone.groovy

[
    new MagicPermanentActivation(
        [
            //Add one for the card itself
            MagicConditionFactory.ManaCost("{2}")
        ],
        new MagicActivationHints(MagicTiming.Draw),
        "Draw"
    ) {

        @Override
        public MagicEvent[] getCostEvent(final MagicPermanent source) {
            return [
                new MagicTapEvent(source),
                new MagicPayManaCostEvent(source,"{1}"),
                new MagicSacrificeEvent(source)
            ];
        }

        @Override
        public MagicEvent getPermanentEvent(final MagicPermanent source,final MagicPayedCost payedCost) {
            return new MagicEvent(
                source,
                this,
                "Draw a card."
            );
        }
        @Override
        public void executeEvent(final MagicGame game, final MagicEvent event) {
            game.doAction(new MagicDrawAction(event.getPlayer()));
        }
    }
]