Perdita with some constructs might be cool for fighting Neverborn, actually. The main things I would really want Perdita on the board for are her Spellbreaker (for the Voodoo Doll's irritating irresistible Conduit ability, she brings an irresistible way to lift it, with a range that has a hope of hitting the Doll) and See the Unseen (as mentioned, allows her to get at Pandora, something most models have some issue with.) She's also I2I herself. Not to mention her survivability. Bring a Guardian and the Effigy, and she'd probably just never die.