Twitching Doll is a rare Artifact Creature — Spider Toy card from Duskmourn: House of Horror Promos (PDSK), collector number 201p. Current market price: $2.54 (foil $2.66), TCGplayer market prices via Scryfall.
{T}: Add one mana of any color. Put a nest counter on this creature. {T}, Sacrifice this creature: Create a 2/2 green Spider creature token with reach for each counter on this creature. Activate only as a sorcery.