Iruini

Iruini was a Toa Hagah of Air. He was mutated into a Rahaga, but later turned back into a Toa.

Toa
Not much is known of Iruini's life before his recruitment into the Toa Hagah. What is known was that he was active as a Toa for quite some time beforehand, operating as a member of another Toa team. Whether or not Iruini was the leader of this team hasn't been revealed. When the Brotherhood of Makuta decided that Makuta Teridax needed Toa bodyguards, Iruini was selected as representative Toa of Air of the new team. He was endowed with metallic armor to indicate his status as an elite Toa, and his former teammates presented him with his current Kanohi Kualsi as a badge of honor.

Toa Hagah
Iruini's new Toa team performed their task well and protected Teridax from things like Rahi intrusions. He quit the team after they rebelled against the Brotherhood, believing they spent too much time on huge menaces and not enough on ever-present dangers. So he escaped the ambush that took most of his team and allied with Norik on a quest to save Gaaki, Pouks, Kualus and Bomonga from the Brotherhood's Visorak. He and Norik managed to rescue them, but were mutated into Rahaga.

Rahaga
After their mutation, the Rahaga dedicated themselves to aiding victims of the Visorak. During this time, they helped the Toa Hordika resist the Visorak invasion of Metru Nui. They were recently transformed by Roodaka into their normal selves, under the Toa Nuva's command.

Powers, Mask, and Tools
As a Toa of Air Iruini could create, control, and absorb air, as well as other things.

Iruini's mask was the Kualsi, which allowed him to teleport to any place within his line of sight. His Cyclone Spear allowed him to focus his air powers, as well as create huge hurricane-force winds. His Rhotuka Launching Shield created Rhotuka Spinners with a healing power.

As a Rahaga, Iruini used a Rhotuka Spinner with a tangling power, as well as a Rahaga Staff.