Her spell is very situational and heavily depends on the opponent and starting board layout. I would not use her with Alchemist/GA but she is quite OK with added Hellcat trying to target purple asap. So, if you face some purple team, she can drag down their mana generation to give player more time to charge GA. Main drawback is that her spell is essentially a one-shot and you have to replace the board after casting. Therefore, using her to charge an exploder might work. I tried only Carnex and it was kind of meh, not very reliable.
Otherwise, she has quite high basic attack and I mostly used her on weeks when elves have some buffs with a skull-spamming team (KoS) for added board control.
Unfortunately, her gold output is quite low and she does not work well win Bonnie.
She was quite good with Bone Dragon before BD was nerfed.