The Oryx Horde is an event that Deca Games, the current owners of the game, are hosting for Month of the Mad God 2017.
In the Patch X.15.1.0, The Oryx Statue has disappeared from the secret location in the vault. Rumors claim that the Oryx Statue connects to the Oryx Horde event, because it has disappeared from the game, and is on the calander, but this information has not been confirmed by Deca Games themselves.
Stone Guardians (Oryx Horde Version)
Spirit of Oryx
Possessed Oryx Statue