custom_init_commands:
- /replaceitem entity @s armor.head minecraft:diamond_helmet
- /replaceitem entity @s armor.chest minecraft:diamond_chestplate
- /replaceitem entity @s armor.legs minecraft:diamond_leggings
- /replaceitem entity @s armor.feet minecraft:diamond_boots
- /replaceitem entity @s weapon.mainhand minecraft:diamond_sword
- /summon minecraft:zombie ~3 ~ ~
- /time set night
defaults:
- base
- _self_
text: 'Combat zombies with given weapons and armor.  '