(https://ben10.fandom.com/wiki/Lucubra), Powers and Abilities: Lucubra have the ability to feed on the thoughts of beings, through interfacing with their tentacles. According to Gwen, Lucubra feed specifically on the energy from the parietal lobe (notable for activating during prayer or meditation), and feast "until there's nothing left but a mindless slave" Even if the Lucubra feeds for only a second, and even if their physical connection to their victim is severed.