Cuz Parvati is bestest demon

Okay, let's get serious. I want to make a Parvati with the best skills possible. I have some ideas but I'm not sure if it's really any good.
Here's what I think would be... okay, I guess.

First fusing a Femme Yaksini with Void Ice just learnt (to get rid of Parvati's weakness to Ice) with a "raw" Femme Rangda to make a Elemental Aquans with Void Ice, Debilitate and Dekaja. Then fuse Aquans with a Erthys to get an Ara Mitama with the aforementioned skills. And then fuse my Mitama with Megami Sati to finally get the skills to the demon I really want. Probably would fuse Sati with a Niki Mitama to get Fire Boost too, and possibly a -kaja spell. And finally level her up so she evolves to Parvati, Pokémon style!

Any suggestions? Know any better moves and/or demons that I should get and fuse instead?