NaturalAttack

Used by Npc

This is a nested shape inside a content file. The catalog explains context validation and links real RON examples.

One natural attack off a monster's stat block: a bite, claw, or slam the creature IS armed with — not a borrowed weapon. PRIMITIVES only: to-hit and the damage average DERIVE (pb_for_cr + the governing ability's mod), exactly as a humanoid's weapon line does. The ability names which mod feeds both (Str for a slam, Dex for a wolf's quick bite — the finesse rule made explicit for the raceless). reach_ft is the melee reach (5 ft on the grid = one square; a longer reach is ledgered); a ranged natural attack carries range (none in the starter bestiary — the substrate for a manticore's spikes, ledgered).

Field	Type	Required	Description
ability	Ability	required	The ability whose mod feeds to-hit and damage (Str, or Dex for a finesse-like bite).
advantage_if_self_bloodied	boolean	default false	Advantage while the attacker itself is Bloodied (for example, Bloodied Fury).
advantage_if_target_bloodied	boolean	default false	Authored advantage if target bloodied.
advantage_if_target_wounded	boolean	default false	Advantage when the target has fewer than all of its Hit Points.
charge	NaturalAttackCharge	optional	Extra on-hit payload after a straight run toward the target.
damage	Damage	required	The attack's damage dice and kind.
damage_flat	integer	optional	Printed flat damage modifier when it differs from the attack ability modifier. Absent keeps the ordinary derived modifier.
damage_if_self_bloodied	Damage	optional	Replacement damage dice and kind when the attacker itself is Bloodied. Swarms use this to reduce their attack damage as their members fall.
damage_if_target_bloodied	Damage	optional	Replacement damage dice and kind when the target is Bloodied. The ordinary flat modifier remains unchanged unless `damage_flat` authors it.
forbid_target_grappled_by_self	boolean	default false	This attack cannot target a creature currently grappled by its source.
name	string	required	Authored name.
on_hit	NaturalAttackOnHit[]	default []	Typed mechanics that resolve only after this particular attack hits. Keeping them on the attack (rather than the creature body) preserves identity when a stat block has, for example, a plain Bite and a condition-bearing Tail.
range	Range	optional	Ranged natural-attack range; absent = melee only.
reach_ft	uint32	required	Melee reach in feet (5 ft = one grid square).
recharge_low	uint8	default 0	The LOW d6 face that restores this attack at turn start (6 = "Recharge 6"). Zero means the attack is always available.