Bending the elements…
Lock containers with custom metal keys.
Locksmithing is a passive metalbending utility that lets the caster create unique keys for lockable containers. Right-clicking a container with an ingot creates a matching key and locks it; only that key (or an admin override) can open or break the container.
Right-click a lockable container with an iron/gold/copper/netherite ingot to lock it. Hold sneak and right-click with the matching key to unlock.