Also known as Beauty Is A Beast in the 4Kids dub and Valtor's Plan in the Nickelodeon dub.
While at her Princess Ball, Stella is shocked when she learns Radius is engaged to someone named Countess Cassandra, who turns out to be the mother of Chimera; the two team up under Valtor's orders to ruin her ball and possibly, her life.
- Beauty to Beast: Chimera uses a spell on Stella to turn into a frog-like monster after having her powers increased from the deal she and her mother made with Valtor.
- This Cannot Be!: Stella's reaction when Radius reveals he isn't getting married to Luna like she hoped, but to Countess Cassandra.
- Dude, Not Funny!: Stella is offended when Bloom, Flora and Musa make fun of the date of her Princess Ball.
- Mind Control: Cassandra unleashes this on Radius after Stella is turned into a monster, forcing her out.
