She's a 0-mana 5/5 if you have flamestrike, obviously free 5/5s are good but that's such a situational card that it probably isn't great in a deck that doesn't care that much about tempo anyway. Kabal Crystal Runner is arguably a stronger card on average in this deck and you probably wouldn't want to run that either.
If you undersand this comment, hats off to you. The Tale of Two Hearthstoners: It was the best of RNG, and it was the worst of RNG. It was getting double Fireball from Cabalist's Tome from Babbling Book, it was getting Blood Imp from Bane of Doom, it was getting Deathwing from A Light in the Darkness in Arena, it was getting Pyroblasted two turns in a row, it was the first season of Classic, it was the third season of KoFT, it was the reveal of N'Zoth, it was the reveal of Purify, it was the nerf of Grim Patron, it was the nerf of Dreadsteed, we had all the adventures ahead of us, we had no adventures ahead of us, we were all going to Legend 1, we were all going to Rank 25 - in short, the meta was so far like the present meta in that the saltiest and the SMOrc-iest insisted that it be seen, for good or bad, in the most extreme comparisons only. Edit: Added the word "most."
Probably, you'd just have fewer ways to actually end games. You could drop weaker cards like Burgly Bully and Conjurer since you wouldn't need as many spell generators, refine the curve a bit and maybe slot in some heavy wincon of your choice to fill the gap a bit. On the bright side you get an extra card in your starting hand which should make it easier to play as a more typical control deck. I don't think it would be as good but you don't know until you try.
