Drop some of those spell martyrs. She has the Oraculis for a reason. Generallly I only run 1 or none.
I also feel eVayl has very little use for a Succubus. She's got enough fury to handle herself and her feat helps mitigate things. It will help some with hot swapping Refuge, but not generally a "MUST HAVE" in my experience.
Second Shredder can be cut. I don't feel the Sorc/Hellion does much for the list. The free charge on the Angels is not a huge deal especially for 4 pts.
So thats 2 Martyrs, 1 Shredder and a Succubus and the Hellion, so 10 pts. Use those points to throw in a Ravagore
With the last point, you could cut Farilor and add in a Raek, or adjust something else.
Really its all up to you. I feel with the Heavy discount you should take advantage and have at minimum 4 heavy beasts in theme, with 5-6 being possible as well. Test out different builds and see what you like.
NOTE: I personally do not care for Typhon in her list. I think he's good, but not great. Maybe swap him out for a Scythean for a heavy beater, but free's up some points.