All the world has heard of Cornelius Agrippa. His memory is as immortal as his arts have made me. All the world has also heard of his scholar, who, unawares, raised the foul fiend during his master's absence, and was destroyed by him.
From Mortal Immortal by Mary Shelley.
Is the highlighted sentence grammatically correct?
As far as I can tell, His memory corresponds to his arts, not to his arts have made me. I mean, the correspondence has to be 'word to word' or 'phrase to phrase'. Or maybe the sentence needs a relative pronoun or something?
In fact, what does this sentence mean exactly?