
Can't wait to try this card out . There are so many powerful options that you can attach to her. One underrated option that I want to attempt is Moonlight Ritual. Let's say you're Marie with both David Renfield and De Vermis Mysteriis running. This would allow you to run really high on doom effects knowing that doom cancellation is right there on tap multiple times. Marie can also take Truth from Fiction as a splash card, along with a number of really good insight cards to recur. You could potentially use Moonlight Ritual up to 5 times (or more with recursion), allowing you to run with big resources, semi-permanent will boost from Renfield and the ability to keep replaying key spells. I'm not quite there yet with the deck, but it could be a lot of fun.
The other one I like of course is Deny Existence. Multiple cancels on tap is great, esp if you're playing a more fighty mystic like Akachi. Ward of Protection for certain scenarios would be insanely useful, Blood-Rite would be great of course. For certain big money mystic builds the forthcoming Storm of Spirits(3) could be in play.
Oh, and I should add that the 3 health on this ally is great.