Something else: when you fight the Telethia with Alvis he says stuff like "resistance is futile" and "I'm afraid I can't let you do that" in his battle quotes, both are iconic quotes said by robot/ai characters in media.
And if you warn him about a vision he says "I know" (this battle takes place before it is revealed that he is a seer)
They actually recorded like 2 minutes of battle quotes for Alvis that he only uses in that one fight, you can look up "Alvis battle quotes" on YouTube if you want to hear all of them
To be honest I barely heard him speak, I never warned him I just did the mechanic and went with that lol