This subtheme is based on Ninjago Season 10, March of the Oni and is the third part of the Oni Trilogy. This was the first and only season not to have a full set wave accompany the season. The Ninjago Accessory set was the only set made for season ten, and, it is a minifigure pack, not a full set.
2019 LEGO Sets
2019 marked 20 years of LEGO Star Wars with commemorative editions and retro-printed minifigures. LEGO acquired BrickLink, the leading secondary marketplace, deepening ties with the AFOL community. Hidden Side blended augmented reality with ghost-hunting builds, while pop-culture entries like Stranger Things and Overwatch reached new audiences. By this period, earlier in-house lines such as Nexo Knights and Elves had concluded.