i havent thought of any "active" examples yet (besides mei being used by OO/anima). the thing with taking advantage of aspects is that they can either fight back or turn into a distortion from magic abuse, so most cases of exploitation involve aspects exploiting -themselves- and distorting as a consequence... and then getting killed by other aspects in turn ๐ ER will have quite a bit of these bosses where you fight demonic aspects
none, although it did inspire me to call anima the "world serpent" at one point. i would say nidhoggr has more parallels. either way i think you'd glean more from its artfight profile and playlist tbh https://artfight.net/character/2948727.anima
responses in alt whee