MalActorMPCountVZ

var MalMPCGPInit = Game_Party.prototype.initialize
Game_Party.prototype.initialize = function() {
    this._actorMPCount = [];
    MalMPCGPInit.call(this);
};

var MalMPCpaySkillCost = Game_BattlerBase.prototype.paySkillCost;
Game_BattlerBase.prototype.paySkillCost = function(skill) {
    MalMPCpaySkillCost.call(this, skill);
    if (this._actorId) this.countMP(this.skillMpCost(skill))
};

Game_BattlerBase.prototype.countMP = function(count) {
    var id = this._actorId;
    if (!$gameParty._actorMPCount[id]) $gameParty._actorMPCount[id] = 0;
    $gameParty._actorMPCount[id] += count;
};

Game_Party.prototype.getActorMPCount = function (id){
        if (!$gameParty._actorMPCount[id]) $gameParty._actorMPCount[id] = 0;
        return $gameParty._actorMPCount[id];
}