It's very powerful. Talos only has a few weaknesses and it resists a great deal. But about the mindspeach thing... it's definitely the one of mine who does this a lot. It will reach out to touch your mind almost right away, so it can be easy to get worried about it. But Talos means no harm. It simply enjoys conversation.

[And searching through people's minds for intent to harm its Mistress, but Ilya doubts that'll be a problem here.]