If you're talking about the Krynn, it was taken away from them just before launch.  For being too OP presumably (or at least too OP when combined with Prolific).  In fact no faction starts out with it, although it is still available to custom factions.

the Yor don't even work in my games lol, they just sit there and do nothing. Same with the Terran they don't do anything. The Drengin and Krynn are still unbalanced, they can rip out a doom fleet from nowhere and constantly have far more planets then anyone else.