Shrine of Salvation

The Shrine of Salvation was a portal machine originally created by Dark Hunter "Alchemist". He later lost it and it was adopted by Turaga Maroona.

History
After Makuta Tetradon betrayed Makuta Nephix, "Alchemist" joined forces with the latter. At some point, in order to transport to Xia and back, he invented a machine that could open portals. He eventually lost it before an air raid led by the Brotherhood of Makuta, and it was found by Turaga Maroona. After discovering it's usage, she used it to hide the Toa Navahko, Corduk, Wreshi, Salvina, Lewok and Detras in a pocket dimension, where they entered stasis in order to survive.

The Feral Plains
During the very beginning of The Feral Plains, Maroona travelled up the Desolation River with Arvos and Omakah to find the machine. She referred to it as the "Shrine of Salvation", which would descrive it's usage. After summoning the Toa from stasis in the pocket dimension, it went unused for a while.

At some point, Makuta Hysterix attempted to hack into the machine while on the astral plain. This caused Corduk to spontaneously transport to the pocket dimension and back, and Maroona began to investigate. At this point, Hysterix managed to awake Wreshi from stasis, and, seizing the opportunity while the Toa of Stone was barely awake, was able to possess his body. When Navahko arrived in the pocket dimension to save Corduk, he was forced to fight Wreshi. In the end, he, Wreshi, and Corduk were transported back to Powai Nui and Hysterix left Wreshi's body.

Sometime after, Dark Hunter "Alchemist" sent Toa Vandir on a vague mission to activate a special power. After tricking Maroona into doing this, Hysterix' body was resurrected, and the Makuta could live physically once more.

After Keelo was mutated and conquered much of Powai Nui, Salvina, Corduk, Maroona and Arvos escaped with the Shrine, keeping it at the Aqueduct Base.

Usage and Powers
The main function and ability of the Shrine is to open portals, although it has other unexplained and bizarre powers. It is activated by vocal commands, although "Alchemist", knowing of Archaic Matoran, coded the device in it, and as such voice commands must be spoken in the language. By saying other things, the device can be coded to activate when other phrases are said other than normal commands (for example making the device open a portal whenever you say "Remember Matoro").

The main functionality and power of the Shrine is opening portals. These portals can either lead to somewhere in the Matoran Universe (not alternate dimensions), or to a small pocket dimension where things can be stored. Beings can be in the pocket dimension, but due to energy conservation restrictions, there is a maximum of six beings in the pocket dimension at a time.

There are other unexplained powers the machine has, for example reincarnating the body of a deceased being for their spirit to inhabit.

Trivia

 * When The Feral Plains was having it's first episode released, the main intention behind the Shrine of Salvation was only for storing the Powai Nui Toa. However, in order to give an explanation for it's purpose, it was made into a portal-opening device, with a subsequent episode to explain and reveal this.
 * While the machine is portable, it is unable to perform actions on the move. THus the nickname, the Shrine of Salvation.