You can choose to use Intelligence, instead of Charisma, as your warlock spellcasting ability. If you choose to use Intelligence, all warlock features and Eldritch Invocations that reference your Charisma modifier use your Intelligence modifier instead. You must make this choice when you gain this feature.
In addition, you learn one language of your choice and become proficient in your choice of two of the following skills: Arcana, History, Nature, or Religion.
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