This has solid stats, and every time it attacks it makes two life link cats to join the fun
Don't forget her lifelink and first strike too
And hitting with a smaller creature every turn can eventually win a game
The new Wreck-It Ralph characters Vanellope and Snowanna, for instance, have the rush ability to challenge opposing characters as soon as they are played, but dont have a huge benefit like the current Amethyst/Ruby decks do when potentially trading characters in this way, such as drawing when banished
Any one of these mentioned below would be really good inclusions in your decks
Riddleform and Seasoned Hallowblade are solid, and Miscast is essential, but Essence Scatter would probably be better as another bounce spell, Drannith Magistrate might not be necessary (the deck already felt solid against Adventures), and Shell Shield can be a bit clunky and might be better as more copies of Seasoned Hallowblade or Riddleform