[Well now that's just insulting. Trixie did after all attend Celestia's Academy before setting out on her own! Well if this girl thought she knew so much she would be in for a rude wake up call]

Trixie regrets to inform you that you may find spells to be difficult to you at this time. Even the most simple tasks such as levitating items may be beyond you as of this time. Your arrival will have cut you off from almost all of your magic save for what the large gem allows. Go ahead. Make some attempts at magic and feel the same let down that faces all unicorns who arrive here.

[She tries to not sound as though she'll enjoy knowing someone else is stuck at her level. She fails]