Better

exports.BattleScripts = {
    init: function () {
        for (var species in this.data.Pokedex) {
            for (var stat in this.data.Pokedex[species].baseStats) {
                var baseStat = this.data.Pokedex[species].baseStats[stat];
                if (baseStat >= 146) {
                    baseStat = 145;
                }
                this.modData('Pokedex', species).baseStats[stat] = 150 - baseStat;
            }
        }

        for (var i in this.data.FormatsData) {
            this.modData('FormatsData', i).unreleasedHidden = false;
        }
    }
};