Ryushusupercat/Feriluce, The Mercurial Plague, is a Poison goddess and a deity of the Poison Clan of Dantamu.
Feriluce resembles a massive, bat-like beast. She has a pair of branching horns extending from her head, a ruff of fur running down and around her neck, as well as down her back, and a long, thick tail. Her face is akin to that of a draconic bird, and she has long, pointed ears, as well as claw-like hands at the top of her wings.
Feriluce was "born" a while after The Elemental Gods were; their powers were used to create her and her siblings.
Afterwards, she moved from the Hyperverse to Mobius, where she went into hibernation for 100 years. Her presence, as well as the presence of Ghede, Obaluaye, Kharnarax and Dantamu helped to keep the Elemental Plane of Poison stable and balanced with the other nine Elemental Planes.
Feriluce's very breath is poisonous and can erode most substances. Her jaws are strong enough to crush stone, and she is strong enough to carry up to 500 pounds while in flight.
Being Poison and Wind-aligned, Feriluce is weak to Ice, Electricity and Earth.