I've tweaked my image using TTV's Toa design as a base, then making the body details based on Ven's depiction of the Matoran.
Age (Years 1-3): 25-27
Primary Occupation: Carver
Secondary Occupation(s): Engineer, Chemist
Tool(s): Hammer and Chisel, Lightstones, Shovel, Flasks
G1 Mask: Kiril
Personality: Nuztro is relatively quiet and easy-going, though can be quite silver-tongued when needed. He likes to relax, and can often be seen travelling the desert on the back of a Husi bird. Due to his work, he often comes across caravans and the occasional raiding group. However, he retains a neutrality among them, having even bartered with both Hafu and Pouks.
Description: Nuztro is a Motaran carver. He also works as an engineer and chemist, though he is more of a “jack of all trades, master of none”. He often explores the desert for lightstones to run experiments or build new equipment. With his knowledge, he attempts to aid caravans that get damaged on their journeys.
Background: Nuztro grew up in a nomadic tribe, travelling the vast Motaran Desert. During this time, he learned of the various raiding groups that scoured the dunes. When the capital city was established, he and his family settled there. Over time, he began to travel the desert in search of lightstones and other goods. He eventually met and bartered with Ahkmou, who had recently overthrown Pouks. As a jest for the new gatekeeper, Nuztro nicknamed his Husi bird “Pouks”.
Year 1: When the island was frozen, Nuztro was traversing the desert on his Husi. Once unfrozen, he returned to the capital, where he learned of the Toa.
Year 2: As the Civil War drew close, Nuztro began helping caravans of Hafu, Valika, and Ahkmou in order to stay neutral among the three bosses. Eventually he started a ferrying service for Matoran of all regions, by leading them through the desert with his Husi. Since he wasn’t much of a fighter, he refused to side with any specific region, even his own.