Type of gear accordingly to the mage spec.
You already gave a good example: you specialized on battle mage? You unlock the ability to wear chain mail armor through that skill tree.
That way you evade full casters wearing heavy armor and other random combinations.
As he said or all mages cloth only. Don't see other real options.
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Como el ha dicho o que solo puedan llevar tela. No veo otra opcion realista.