Hello. You did not show the text to which this question refers, which will leave the textual evidence inaccurate. However, I will try to help you in the best possible way.
The biggest factor of importance of the magma letter was to present the first freedoms and civil rights, promoting a protection to the citizens in relation to the monarchy and the government. This was the first time that governments had to diminish their influence and powers in relation to the population and not to present abusive behaviors, which would be revoked as soon as the civil rights claimed.
With this, the magma charter provided the basis for just and beneficial governments to be established, being very influential in current governments, where citizens are protected and valued.
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This question was answered with the RAP method, where to answer a question it is necessary to read and understand what is being asked, ask questions about the topic to understand it and then write an efficient and well-justified answer.