Chasme

Chasme

Large fiend (demon)
Challenge

STR
2
DEX
2
CON
1
INT
0
WIS
2
CHA
0

78
12d10+12
17
Soak
1
Fort
+1
Ref
+4
Will
+3
Defense note natural armor
Damage resistances cold, fire, lightning; bludgeoning, piercing, and slashing from attacks that aren’t cold iron
Damage immunities poison
Condition immunities poisoned

Speed 4 m., fly 10 m.
Skills Athletics +4 (15), Brawn +3 (14), Divinity +4 (15), Nimbleness +4 (15), Perception +4 (15), Wilderness +4 (15), Brawn or Nimbleness +3 (14)
Senses blindsight 2 m., darkvision 20 m.
Languages Abyssal, telepathy 20 m.

Drone. The chasme produces a horrid droning sound to which demons are immune. Any other creature that starts its turn within 5 meters of the chasme must succeed on a Difficulty 12 Fortitude saving throw or fall unconscious for 10 minutes. A creature that can’t hear the drone automatically succeeds on the save. The effect on the creature ends if it takes damage or if another creature uses an action to splash it with holy water. If a creature’s saving throw is successful or the effect ends for it, it is immune to the drone for the next 24 hours.

Magic Resistance. The chasme has advantage on saving throws against spells and other magical effects.

Spellcasting. The chasme uses Divinity (wis) to cast spells (spell save Difficulty 13, +4 to hit with spell attacks). It has 6 mana, a mana limit of 1, regains all expended mana when it finishes a long rest, and regains half its total mana when it finishes a short rest. It knows the following spells:

1 mana: bloodhound, crippling pain, enfeeble, extort truth, harm, inflict wounds, judge, locate

Spider Climb. The chasme can climb difficult surfaces, including upside down on ceilings, without needing to make a skill check.

Actions (2)

Proboscis. Melee Weapon Attack: +4 to hit. Hit: 9 (2d6 + 2) piercing damage plus 14 (4d6) necrotic damage and the target’s maximum health is reduced by an amount equal to the necrotic damage taken. If this effect reduces a creature’s maximum health to 0, the creature dies. This reduction to a creature’s maximum health lasts until the creature finishes a long rest or until it is affected by a spell like restoration augmented to greater restoration.

Summon Demon (1/long rest). The chasme has a 30 percent chance of summoning one chasme. A summoned demon appears in an unoccupied space within 10 meters of the chasme, acts as its ally, and can’t summon other demons. It remains for 1 minute, until it or the chasme dies, or until the chasme dismisses it on its turn (no action required).

Lower planesmm

Spells

1 hour/mana

As an action, you can smell creatures that don’t have full health within 10 meters for the duration, which allows you to pinpoint the space the creature occupies.

Additionally, you have advantage on skill checks to track any creature that doesn’t have full health.

concentration, 1 minute/mana

As an action, you inflict crippling agony upon up to two creatures that you can touch or see within 10 meters and within 5 meters of each other. Each target must succeed on a Fortitude saving throw or be slowed 1 for the duration.

A creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.

Augment
You can augment this spell with the following options, expending mana for each option.
  • You can target two additional creatures for each additional mana expended. The creatures must be within 5 meters of each other when you target them.

  • You can increase the slowed level by 1 for each additional mana expended.

concentration, 1 minute/mana

As an action, a black beam of enervating energy springs from your finger toward a creature within 10 meters. The creature must make a Fortitude saving throw.

On a failure, it takes 3d10 necrotic damage and deals only half damage with weapon attacks for the duration.

On a critical failure, it takes twice as much damage.

On a success, it takes half as much damage.

On a critical success, it takes no damage.

The creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.

Augment

You can increase the damage by 4d10 for each additional mana expended.

1 minute/mana

As an action, a creature that you can touch or see within 10 meters must make a Will saving throw.

On a failure, you temporarily disrupt a creature’s ability to mask their true thoughts and intent. The creature is unable to speak a deliberate lie for the duration.

An affected creature is aware of the spell and can avoid answering questions they would normally have responded with a lie. Such a creature can remain evasive in its answers as they remain within the limits of truth.

Augment
You can augment this spell with the following options, expending mana for each option.
  • You can target one additional creature for each additional mana expended. The creatures must be within 5 meters of each other when you target them.

  • Zone of Truth. You can expend 1 additional mana to create a magical zone that guards against deception in a sphere twice as big as normal centered on a point of your choice within 10 meters. The duration changes to 5 minutes/mana and until the spell ends, a creature that enters the spell’s area for the first time on a turn or starts its turn there must make a Will saving throw.

As two actions, you unleash a virulent disease on a creature that you can touch or see within 10 meters. The creature must make a Fortitude saving throw.

On a failure, it takes 3d10 necrotic damage.

On a critical failure, it takes twice as much damage.

On a success, it takes half as much damage.

On a critical success, it takes no damage.

The damage can’t reduce the target’s health below 1. If the target fails the saving throw, its maximum health is reduced for 1 hour by an amount equal to the necrotic damage it took. Any effect that removes a disease allows a creature’s maximum health to return to normal before that time passes.

Augment

You can increase the damage by 3d10 for each additional mana expended.

As an action, you lacerate a creature that you can touch or see within 10 meters. The creature must make a Fortitude saving throw.

On a failure, it loses 4d6 health and is bleeding 3.

On a critical failure, it loses twice as much health and is bleeding 6.

On a success, it loses half as much health and is bleeding 1.

On a critical success, it loses no health.

Augment

You can increase the health lost by 4d6 and the bleeding level by 3 for each additional mana expended.

As a reaction, which you use when you make an Insight check, you gain temporary, intuitive insight into piercing lies. You make the roll with advantage. You can do so after the roll but before any effects of the roll occur.

If the roll already has advantage or disadvantage, you cannot apply another instance of advantage or disadvantage and you must use this before the roll to cancel out any advantage or disadvantage.

(ritual); concentration, 5 minutes/mana

As an action, describe or name an object that is familiar to you. You sense the direction to the object’s location, as long as that object is within 400 meters of you. If the object is in motion, you know the direction of its movement.

The spell can locate a specific object known to you, as long as you have seen it up close—within 5 meters—at least once. Alternatively, the spell can locate the nearest object of a particular kind, such as a certain kind of apparel, jewelry, furniture, tool, or weapon.

This spell can’t locate an object if any thickness of lead, even a thin sheet, blocks a direct path between you and the object.

Augment

Locate Creature. You can expend 1 additional mana to locate a creature instead of an object. Describe or name a creature that is familiar to you. You sense the direction to the creature’s location, as long as that creature is within 400 meters of you. If the creature is moving, you know the direction of its movement.

The spell can locate a specific creature known to you, or the nearest creature of a specific kind (such as a human or a unicorn), so long as you have seen such a creature up close—within 5 meters—at least once. If the creature you described or named is in a different form, such as being under the effects of a polymorph spell, this spell doesn’t locate the creature.

This spell can’t locate a creature if running water at least 2 meters wide blocks a direct path between you and the creature.