It's been a long time since I drew the Elliot - Grace hybrid form! Gracelyn? I think? I called her something. Whatever. There she is. You may now applaud.
Anyway, there's your answer! Several people guessed this, but don't feel too bad if you didn't. This comic is convoluted and has a ridiculously huge archive. The story section alone has over 2,000 comics full of weird magic-babble.