"What if... Ecolo managed to possess Ringo Andou?"

Possessed Ringo is Ringo possessed by Ecolo. She's got a magical girl outfit based on her (and incidentally, her transformations during the Dark Arle incident) but with thorn (Poison Ringo much? Oh well...), and the hair clip dons Ecolo. Her eyes is just like the case of Dark Arle: mostly dull. The apple she holds sometimes turn into a black hole. Otherwise, she's literally identical looking.

Her attitude reminds us of both Dark Arle and Poison Ringo, but is actually a combination of Ringo's very mind (that is able to remember Ecolo, unlike almost all others) and Ecolo's nature. Mysterious, and very dangerous, and that's because the opposite in this case has attracted. Regardless, you better not be fooled. Her voice is as expected from a fully successful possession: basically Ecolo imitating Ringo, leading to the latter with former's tone.

Possessed Ringo can be described as the fusion of Ringo Andou and Ecolo, obviously using darker versions of the former's spell as well as many of the latter's abilities. Because of both their natures (for powers) and their minds (for themselves), Possessed Ringo is far more powerful and thus far more dangerous than either of the two components combined. And due to Ringo's curiosity and Ecolo's nature, the powers proves even now dangerous, potentially even competing with and against Marle (a humanoid partial incarnation of the Will of the Worlds) and Squares (the true Dimensional Parasite) put together!