Twitching Doll is a rare Artifact Creature — Spider Toy card from Duskmourn: House of Horror (DSK), collector number 201. Current market price: $2.24 (foil $3.04), 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.