A bowl would have to be enormous but if it's Discworld-style it could possibly work.
... And I might as well make my suggestion, um...
Basically it's a villain idea, only they're kind of an abstract evil. It's an enormous black tower in its own plane of existence called the Inverted Black Tower, which is pure evil that casts a shadow into the living world but has no sentience. It's just raw malignancy.
Not the only villain obviously but figured I might as well suggest it.
... And I might as well make my suggestion, um...
Basically it's a villain idea, only they're kind of an abstract evil. It's an enormous black tower in its own plane of existence called the Inverted Black Tower, which is pure evil that casts a shadow into the living world but has no sentience. It's just raw malignancy.
Not the only villain obviously but figured I might as well suggest it.