Also,
@TotallyNotEvil to be clear, Ivy gathering information isn't an explicit spell effect, in my opinion. It's just literally what that giant ball of power on the same order of magnitude as a Faerie Queen and with an equal or greater (quite possibly the latter) level of available knowledge
does. The Archive knows everything written down. This is simply what she is and does.
High Valyrian is new to her, but it's not an insurmountable obstacle. She's probably having fun with it,
learning something new, and if she was slightly less restricted she'd probably have outright called Viserys and asked to visit by now.