Kill Disk
From Tardis Wiki, the free Doctor Who reference
Kill Disks were flying machines with twirling blades that could shoot energy blasts at opponents, and were used by Karvanista.
In 2021, Karvanista trapped the Thirteenth Doctor and Yasmin Khan on an acid planet. To ensure that they couldn't escape he set two Kill Disks that were supposed to blast them to pieces. However, they managed to escape and destroy them. (TV: The Halloween Apocalypse)
