Death-elemental summon idea, based on Norse mythology.
Hela, daughter of Loki and Angrboda, the half-corpse keeper of the halls of the dead. Lives in a mansion with a threshold called Pitfall, eats from a bowl called Hunger with a knife named Famine, sleeps on the Sickbed surrounded by the Gleamingbale curtains.
The calla lilies aren't really part of the myth, but they're used often for funerals and weddings, and they translate well into a death-scythe design.
If you look closely, you can see the exact point where I gave up on trying to make this picture suck less.