I believed the Necron = Iifa Tree, but I have ONE problem with it. Mainly: Its desire to return everything to zero, instead of sorting out the souls like Garland wanted the Iifa Tree to do. Why would the tree suddenly change its mind? Why would it even want to face Zidane and co instead of just sorting out their souls?

It was created to sort out souls. Why would it suddenly go a Neo Exdeath?