What's the use of Yterre crystal shard?
(SPOILERS)
For the shard, there are only two options:
- Use it on the mirror in the gallery of the Chateau d'Yterre, then find Madame Yterre and follow her or wait around for a while and she'll go to the mirror, where you can recruit her to your party without fighting her.
- You can sell it for a decent amount of gold.
Thank you for playing!