Baba Yaga

Not to be confused with Morgana Le Fay, who also goes by the name of Baba Yaga (as is her role as the "mother of all witches).

Baba Yaga is a Russian goddess of witchcraft, earth and misfortune - although it was Morgana Le Fay that popularized Baba Yaga as a "fairytale witch" the actual goddess did and continues to exist, after Morgana Le Fay was banished to Tartarus the true Baba Yaga began to make herself known to the inhabitants of Wonderland as well as those of the "real" world.

Ultimately she would end up a permanent resident of the "real" world following the Shift and is set to be a major antagonist during this era as she gives the world a taste of what happens when a witch-goddess is unleashed upon a world that is both alien yet oddly familar to her.