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70789 Onua – Master of Earth
Set Onua Master of Earth Pose.jpg
Large Set
Set number 70789
Subtheme Masters
Release date January 2015
Pieces 108
MSRP $19.99 (US)
£14.99 (UK)
Ages 8-14
70789 Instructions

Set 70789 Onua - Master of Earth is a large set released in early 2015. It is the first portrayal of Toa Onua in the reboot of BIONICLE.

Product Description

Lego2018.svg The following is a product description taken directly from LEGO. View the source here
Quarry underground with Onua’s earthquake hammer!
Dig deep with Onua – Master of Earth to claim the mystical Golden Mask! This durable, highly posable figure with 4 golden BIONICLE® shells and bashing battle arm is fully geared up for underground combat against the Skull Spider. Burrow underground with the turbo shovelers while evading the evil Skull Spider’s efforts to pop off Onua’s mask. Then convert his turbo shovelers into a massive earthquake hammer, the only tool powerful enough to break through to the Golden Mask.

*Features a BIONICLE® head with mask and mask pop-off trigger, 4 golden BIONICLE shells, tribal chest decoration, convertible earthquake hammer/turbo shovelers, wheel-operated bashing battle arm function and posable joints
*Also includes the Golden Mask of Earth and a pale green Skull Spider
*Power towards the Golden Mask with Onua’s earthquake hammer
*Convert the hammer into turbo shovelers to burrow through earth
*Turn the wheel to power up the bashing battle arm
*Resist the Skull Spider’s attempts to pop off Onua’s mask!
*Highly posable and durable for intense action play
*Combine with 70781 LEGO® BIONICLE® Protector of Earth using building instructions available at to power up for ultra elemental battle!
*Stands over 7” (19cm) tall

Set Information

Onua was revealed on October 9th, 2014 at New York Comic Con during the BIONICLE panel, and was officially released in January 2015. The set contains 108 pieces, including two Masks of Earth and a green Skull Spider.

Like most other early 2015 sets, the back of the set's packaging depicts a short comic featuring Onua and the Protector of Earth. The comic advertises the feature of combining the set with 70781 Protector of Earth to create a "powered-up" Onua.


By turning a knob on Onua's back, his arms can be swung in opposite directions.

The head of the Earthquake Hammer can be split apart to create the Turbo Shovelers. The remaining top part of the hammer can be fitted onto a short axle when the Turbo Shovelers are being wielded.


The set includes the Mask of Earth, the Golden Mask of Earth, and a light green Skull Spider.


See also