Damage source NBT · Origins: Powerful Powers Handbook

origins-powerful-powers:damage_source_nbtdamage condition

Checks one NBT value on the entity that directly caused the damage: the arrow or other projectile for ranged hits, or the attacker for melee.

Field	Type	Default	Description
`key`	String	required	A top-level NBT key of that entity
`value`	String	required	The text the value must equal

False when there's no direct entity, as with fall damage, fire or drowning.
The value is compared as text. Strings are compared as they are. Other values use their SNBT form, so a number includes its suffix (1b, 5, 1.5d) and a list includes its brackets. Vanilla saves true/false as bytes, so "true" is 1b.
Only top-level keys work. Paths like Item.id don't.
For the projectile type, use Origins' origins:projectile damage condition.

Example: crossbow bolts hurt you less.

json

{
  "type": "origins:modify_damage_taken",
  "damage_condition": {
    "type": "origins-powerful-powers:damage_source_nbt",
    "key": "ShotFromCrossbow",
    "value": "1b"
  },
  "modifier": {
    "operation": "multiply_total_multiplicative",
    "value": -0.3
  }
}

Arrows shot from a crossbow deal 30% less damage to you.