equipment: block on a mob says what it wears and holds, one entry per slot.
Equipment: [- diamond_sword HAND]); here it is a slot-keyed section, so a glance tells you what is on which limb. A MythicMobs file converts into this shape on load, slot names and all.
Slots
Slot names are case-insensitive and
_ and - are ignored, so OFF_HAND, off-hand and offhand are one key — nobody should have to guess which.
Two ways to write a slot
The short form is just the item:material: is accepted as a synonym for item:.
Drop chance
Adrop-chance written directly under equipment: is the default for every slot in the block, and a slot may still override it:
1 is always, 0 is never, and anything outside 0–1 is clamped.
Notes
- Slots the block does not mention are left exactly as the vanilla entity spawned with them, so you can dress one hand and leave the rest alone.
- Items are vanilla item ids. Custom plugin items are not supported here yet — an unrecognised name is reported by
/nme debugand that slot is skipped, rather than failing the whole mob. - An unknown slot name is reported the same way and lists the ones that exist.
- Equipment is one of the two fields the in-game editor shows but does not edit — it reads as “3 piece(s)” there and is edited in the YAML.
- Gear carries across when a mob grows into another stage, landing in any slot the new stage does not fill itself.

