The Oryx’s Castle Key open Oryx’s Castle dungeon.
Oryx’s Castle is a high-level dungeon that can only be accessed by closing a realm. When specific Quest Monsters have been defeated and after a wait of two minutes, all players will, during an earthquake, be teleported to Oryx’s Castle. The players in the realm are then divided into 4 teams which converge and fight a pair of bosses that drop the portal to Oryx’s personal chamber.
Note: during winter, the floor of the Guardian room is iced/slippery