Somewhat of a self-explanatory forum game. Essentially one poster makes a post asking about something related to the BIONICLE lore, and the poster below them has to answer the question and then make another question about the BIONICLE lore for the next poster to answer.
Ex: "Who was the first Toa?"
"Helryx. Who was the leader of the Makuta before Teridax overthrew him/her?"
Now for the question:
What two Rahi nearly destroyed Xia in a large-scale duel before they were stopped by Toa?