First Toa

The First Toa were the first group of Toa ever, in the entire universe. Even though Hangi was the first Toa, he didn't belong to the group.

The First Toa were created by Mata Nui and placed into the Ancient Suva, where they could be released from through Toa Stones, if needed.

Later, when Ilona was transformed into a Toa by Hangi, she became a part of the group.

History
The First Toa group was created by Mata Nui long ago, just before the creation of Manuin, as a failsafe for the First Matoran if they would get in trouble without him being there. He placed the Toa in the Ancient Suva, which would teleport itself on Manuin after it's creation. Mata Nui also made seven Toa Stones that could unlock the Suva and set the Toa free.

When the Vine Creature attacked the Canyon of the Great Spirit, Ilona was sent on a mission to find the Toa. She collected the Toa Stones and unleashed the Toa from the suva. They didn't remember their past. Ilona took them to her home, where the Toa defeated the creature.

The Toa then started guarding the Matoran. When Makaatu made his attacks towards them, they fought and won many threats. Also, Hangi turned Ilona into a Toa. She joined the team then.

However, when Makaatu came into the canyon himself for the final strike, the Toa couldn't stop him. He made them unconscious and captured the Matoran in Matoran Pods, taking them away. The Toa went after him, Ilona facing Makaatu while the others rescued the Matoran.

They succeeded and took and awoke the Matoran in the Hangi Canyon. All of them, except Rugah, Vakata and Inirl sacrificed their power to awake the Matoran and make Hangi Canyon livable. They turned into Turaga.

The three remaining Toa worked as protecters and assistants of the Matoran. They aided them during the Great Flood and the 11 Assignments. They then escorted the Matoran back to Dromii, which was recreated by Mata Nui.

Currently the three Toa are assisitng and protecting the Matoran on Dromii.