Onua - Uniter of Earth

Onua - Uniter of Earth (71309-1) was released by the Lego Group in 2016 as part of the second wave of the Bionicle reboot, a relaunch of the popular constructible action figure line that originally debuted in 2001. Designed to bridge the narrative gap between the initial reboot wave and the final chapter of the series, the set reflects a transition toward more complex, armor-heavy aesthetics. It features the Toa of Earth accompanied by a companion creature, Terrak, which allowed for a 'uniting' play feature where the creature could attach to the back of the Toa to form an upgraded configuration.

The set’s design prioritizes a bulky, heavy-set silhouette to match the character’s elemental theme, utilizing the established Constraction system of the era. Like its predecessors in the reboot, it was created by the Lego design team to appeal to both nostalgic fans of the original 2000s series and a younger demographic. Upon release, the set was noted by the community for its distinctive purple and black color scheme and its sturdy build, though it also highlighted the ongoing shift in the Bionicle line toward simplified connection points and specialized armor pieces compared to the intricate internal gear systems of the early 2000s.