Pohatu

There are multiple articles with the name you are looking for:


 * Pohatu (2001-2010), the original version of the character; Toa Mata of Stone, Toa Nuva of Stone, & Toa Phantoka.
 * Pohatu (2015-2016), the rebooted version of the same character; Master of Stone, & Uniter of Stone on Okoto.