Gathering coils were engineered biotech weapons, described as a "semi-species" by the Thirteenth Doctor.
Characteristics[]
These coils resembled cables and wires of various sizes, acting like tentacles, which could gather data. At least some coils also had the ability to plant DNA bombs. A number of Gathering coils were able to gather to create one large, more polyvalent creature, though such a swarm could be deactivated with a large electric shock. (PROSE: Things She Thought While Falling, TV: The Woman Who Fell to Earth)
History[]
Tzim-Sha used a swarm of Gathering Coils in order to locate a trophy to take back to his planet, despite this being against his species' rules. It was later deactivated by Grace O'Brien, who electrocuted it with a cable at the cost of her own life. (TV: The Woman Who Fell to Earth)
One Gathering Coil was housed within the prison the Thirteenth Doctor found herself imprisoned in by the Judoon. (TV: Revolution of the Daleks)
