public void handleExceedAttack(int skill) {
        long now = System.currentTimeMillis();
        if (lastExceedTime + 15000 < now) {
            exceedAttack = 0;
            lastExceedTime = now;
        }
        client.getSession().write(AvengerPacket.giveExceedAttack(skill, ++exceedAttack));
    }