Pohatu has control over stone. He can move it and create. these powers have almost no limit but if exausted he can restore them by drawing energy from rock. He wears the Kanohi Kakama, the mask of super speed. HE has two large smashers on the front of his feet for kicking.
Pohatu was a member of the toa team including Gali, Lewa, Onua, Tahu, and Kopaka. They arrived on Mata nui unaware of who they were. They found villages of beings called matoran who had awaited their arrival to free them from the tyranny of the Makuta. The matoran were led by wise beings called the turaga who knew the toas' names and purpose. It was their destiny to find all of the great Kanohi masks and use them to defeat Makuta who had polluted the minds of the animals of Mata nui, known as rahi, and put the Great Spirit Mata nui to sleep. Tahu became the leader of the team.
In their first journeys throughout the island Pohatu gained five other masks aside form his mask of super speed. They gave him the powers of underwater breathing, Sheilding, levitation, super strength, and x-ray vision. At the temple Kini nui the six masks were combined into one golden mask that allowed him to use all of his mask powers at once.
The toa descended to the deep tunnels of the island where they faced shadow versions of themselves, created by the Makuta. They were victorious and reemerged and finished reverting the rahi to normal.
The toa later faced the threat of the Bohrok swarms, mechanical bugs that functioned as suits for the Krata. The toa gathered one of each kind of Krata and used them to unlock and activate the exotoa, power suits of armor. They then used these suits to battle the Barahg twin queens. At the end of the battle they took off the armor to unite and use their combined power to imprison the Bahrag. The resulting energy burst threw them into pools of energized molten protodermis transforming them in to the toa nuva.
Pohatu was transformed into Pohatu nuve. He gained greater control of stone. He also got large claws tools in addition to his kicker feet. They could be connected to make a club. His golden Mask became the Kakama nuva, It made him even faster then before, allowing him to vibrate his molecules to vibrate through objects. It could also extend it power to others near it.
Shortly after the Bohrok Kal attempted to free the Bahrag. Tahu nuva was given the mask of time by the Turaga, who also cautioned him against its use. It gave him complete control of time. He used to defeat the Bohrak Kal by slowing time long enough for the other toa to stop them from freeing the Bahrag.