around the time of the toa metru being created there was a ko matoran named auzer
he was wandering the beach of ga metru and fell asleep but when he woke up he was on a different island.he was on the island of karzani he was greeted by a tall green figure. karzani said you will fit right in here then karzani would him the history of the island auzer felt sorry for him so he wanted to stay. years later he found a strong rock it was a toa stone he found it in the mines.he remembered a slot in kazani"s temple that the rock would fit perfectly into.when he put it into the slot he was shot with a bolt of energy and became auzer toa nui of ice.
because of this karzani thought there was no use for him so he was banished to the remains of metru nui but there were no matoran because they were at the island of mata nui greeting the toa mata so he left to explore and do justice through out the matoran universe
also look for the unfinished voriki moc in the back ground