magarena/release/Magarena/scripts/Master_of_Etherium.groovy

[
    new MagicCDA() {
        @Override
        public void modPowerToughness(final MagicGame game, final MagicPlayer player, final MagicPowerToughness pt) {
            final int size = game.filterPermanents(player, MagicTargetFilter.TARGET_ARTIFACT_YOU_CONTROL).size();
            pt.set(size, size);
        }
    }
]