A typical play pattern back in the day was casting your first Jar, finding a second copy of it, casting it again, and then eliminating your opponent with the help of Megrim
Which sounds obvious until you have played with proxies that do not
If you wanted to keep her in Bracket 2, then stick to a theme
Its Swords to Plowshares on a stick, which means flicker decks can have a field day controlling the board with Displacer Kitten, Thassa, Deep-Dwelling, and anything else that lets them flicker it
#3 The Change Is (Mostly) Out of Their Control This means that the catalyst for the change needs to be external rather than internalor, in other words, the player isn't going to be able to simply choose when his or her creature will change into a Werewolf
How could this have possibly been printed