Pakastaa

Metru Nui
Not much is known about Pakastaa's life on Metru Nui. It is known that he was taken away by the Vahki and placed in a Matoran Pod by Teridax. He was then brought to Mata Nui and awakened by the Toa Metru.

Mata Nui
On Mata Nui, Pakastaa served as a guard. He was rebuilt into a stronger form by the Turaga at the Kini Nui.

Return to Metru Nui
He then returned to Metru Nui, and was helping to rebuild it, until the Staff of Artakha repaired the city.

Spherus Magna
He later evacuated the Matoran Universe and migrated to Spherus Magna, where he met a strange Matoran called 'Steampunk'. A while later, Toa Tahu enlisted Pakastaa to become part of the Great Being's Fortress Attack Squad. He then became a Toa when Tahu gave up his Toa Power to create a door into the Tower.

Powers and Equipment
As a Matoran on Mata Nui, Pakastaa carried a Pick, due to his employment as a guard. He also wore a powerless Huna.

Upon becoming a Toa, he carried an Ice Spear, that could channel his elemental energy. His left hand turned into a Thornax Launcher-esque weapon. His powerless Huna transformed into a Great Pakari.