|This article is about something that is currently under development or unreleased.|
Details may change prior to official release.
|Power||+150 (Summon & Nano-Gear) Bs|
|First appearance||Magnus is Back!|
Widow (ウィドウ, Uidō?) is a black widow-like Nanogan that debuts in Bakugan: Evolutions. It is the Nanogan of Nillious. When turned into Nillious Strength Mode's Nano-Gear, Widow becomes the Widow Whip (ウィドウホイップ, Uidō Hoippu?) energy tendrils mounted on the back.