Minecraft: Java Edition Snapshot 22w12a is headlined by the inclusion of features previously tested in an experimental snapshot. Players can get their hands on the terrifying Warden mob, the new ...

Minecraft: Java Edition Deep Dark Experimental Snapshot 1 includes a ton of new features from The Wild Update, including the Deep Dark biome and Warden mob.

In Bedrock, you can summon it directly by typing slash summon Warden, while on Java, the command to summon it is Minecraft colon Warden.