The Ominous Vault is the most sought-after item in the new Trial Chambers added to Minecraft in update 1.21. To open these vaults, you'll need the Ominous Trial Key. Here's everything you need to know about how to get one.

To get an Ominous Trial Key in Minecraft, you need to clear the Ominous Trial Spawner. Ominous Trial Spawners are a variation of regular Trial Spawners that only appear when you have the Bad Omen effect.

The easiest way to get the Bad Omen effect is to drink the Ominous Bottle that drops from regular Vaults in the Trial Chamber. Clear regular spawners to get Trial Keys, open as many vaults as possible and you should get at least one bottle. You can also get the Ominous Bottle from Raid Captains.

Entering the Trial Chamber with the effect will trigger the Ominous Trial Event, which will transform Trial Spawners into Ominous Trial Spawners. Be aware though, as these spawners spawn stronger and more armored enemies. Nearly every skeleton I encountered in my chamber had some sort of armor on, ranging from leather to diamond breastplates. Snowballs in Dispensers will also be replaced with arrows after the event is triggered.