def PT = new MagicStatic(MagicLayer.SetPT, MagicStatic.UntilEOT) {
    @Override
    public void modPowerToughness(final MagicPermanent source,final MagicPermanent permanent,final MagicPowerToughness pt) {
        pt.set(4,2);
    }
};

def ST = new MagicStatic(MagicLayer.Type, MagicStatic.UntilEOT) {
    @Override
    public void modSubTypeFlags(final MagicPermanent permanent,final Set<MagicSubType> flags) {
        flags.add(MagicSubType.Golem);
    }
    @Override
    public int getTypeFlags(final MagicPermanent permanent,final int flags) {
        return flags |
                MagicType.Artifact.getMask() |
                MagicType.Creature.getMask();
    }
};

[
    new MagicPermanentActivation(
        new MagicActivationHints(MagicTiming.Animate),
        "Animate"
    ) {
        @Override
        public MagicEvent[] getCostEvent(final MagicPermanent source) {
            return [new MagicPayManaCostEvent(source,"{4}")];
        }
        @Override
        public MagicEvent getPermanentEvent(final MagicPermanent source,final MagicPayedCost payedCost) {
            return new MagicEvent(
                source,
                this,
                "Until end of turn, SN becomes a 4/2 Golem artifact creature. " +
                "It's still a land."
            );
        }
        @Override
        public void executeEvent(final MagicGame game, final MagicEvent event) {
            game.doAction(new MagicBecomesCreatureAction(event.getPermanent(),PT,ST));
        }
    }
]