Actions/Abilities/Traits: (Pathfinder 2e)
Ability
Breath Weapon
(cold, evocation, negative, occult, shadow) The shadow worm exhales a blast of clinging shadow, dealing 11d6 cold damage and 10d6 negative damage to creatures in a 60-foot cone (DC 42 basic Reflex save). If the cone passes through an area of magical light or targets a creature affected by magical light, Breath Weapon attempts to counteract the light (+34 counteract modifier). The shadow worm can't use Breath Weapon again for 1d4 rounds.
Ability
Fast Swallow
Circumstance: Trigger: The shadow worm Grabs a creature;
The worm uses Swallow Whole.
Ability
Inexorable
The shadow worm recovers from the paralyzed, slowed, and stunned conditions at the end of its turn. It's also immune to penalties to its Speeds and the immobilized condition, and it ignores difficult terrain and greater difficult terrain.
Ability
Rock Tunneler
A shadow worm can burrow through solid stone at a Speed of 20 feet. It can leave a tunnel if it desires, and it usually does.
Ability
Shadow Healing
As long as a shadow worm is in an area of dim light or darkness, it gains fast healing 20. When affected by a magical shadow effect from anything other than itself, a shadow worm becomes quickened 1 for 1 round.
Ability
Shrink from the Light
A shadow worm takes an additional 20 damage from any spell or ability with the light trait and uses the outcome one degree worse for saving throws made against a spell or ability with the light trait.
Ability
Swallow Whole
Huge, 3d10+15 bludgeoning, Rupture 42
Ability
Thrash
The worm makes a Strike once against each creature in its reach. It can Strike up to once with its jaws and any number of times with its body. Each attack counts toward the worm's multiple attack penalty, but the multiple attack penalty doesn't increase until after it makes all the attacks.
Offense
Melee
Circumstance: combat round (melee)
jaws +38 [+33/+28] (deadly 2d10, reach 15 feet), Damage 4d10+20 piercing plus Improved Grab
Trait
Animal
An animal is a creature with a relatively low intelligence. It typically doesn't have an Intelligence ability modifier over -4, can't speak languages, and can't be trained in Intelligence-based skills.
Trait
Shadow
Magic with this trait involves shadows or the energy of the Shadow Plane. Creatures with this trait are natives of the Shadow Plane. They can survive the basic environmental effects of the Shadow Plane.
Perception
darkvision
tremorsense (imprecise) 100 feet
Resistance
cold 20
negative 20
Weakness
shrink from the light