Huge Monstrosity, Neutral Evil
Armor Class 18 (Natural armor)
Hit Points 248 (20d12 + 120)
Speed 40 ft., Climb 60 ft.
STR
22 (+6)
DEX
18 (+4)
CON
23 (+6)
INT
10 (+0)
WIS
16 (+3)
CHA
13 (+1)
Saving Throws STR +11, CON +11, WIS +8
Skills Athletics +11, Perception +8, Stealth +9
Damage Resistances Necrotic; Bludgeoning, Piercing, and Slashing from Nonmagical Attacks
Damage Immunities Acid, Poison
Condition Immunities Charmed, Frightened, Poisoned
Senses Darkvision 120ft., Passive Perception 18
Languages Abyssal and Common
Challenge 14 (11,500 XP)
Proficiency Bonus +5
Traits

Magic Resistance. The Matron has advantage on an rolls to save against spells and other magical effects. 

Feral Instinct. The Matron has advantage on all Wisdom saving throws.

Greater Websense. The Matron can sense any creature in any of her webs with a 1-mile radius. 

Greater Web walk. The Matron has double climbing speed when walking on webbing. 

Acidic Blood. Whenever the Matron is hit by an attack, all creatures within 5ft of her need to make a DC 15 Dex save or take 3d8 acid damage. On a success, the creature takes half damage. 

Convert Corpse (2/Short Rest). As a bonus action,  the Matron can convert a corpse stuck in her web into a Giant Corpse Spider. 

Actions

Multiattack. The Matron makes four Piercing Leg attacks and then a bite attack to any creature in her web. 

Piercing Leg Attack. Melee Weapon Attack: +11 to hit, 10ft., one target. Hit: 13 (2d10 + 6) piercing damage.

Bite. Melee Weapon Attack: +11to hit, 5ft., one target. Hit. 28 (4d12 + 6) piercing damage.  When a target is hit, they must make a DC 16 Con save or take 6d6 necrotic damage. If the target succeeds they take 4d6 poison damage. If the target takes necrotic damage, the Matron is healed an equal amount to the damage taken. 

Web. RangedWeapon Attack: +9 to hit, range 30/60 ft., one target.  Hit.  9 (3d6) acid damage. If the attack hits, the target is now restrained and is pulled towards the Matron. The Matron can either hold up to two creatures in her web on her back legs or restrain them in her larger web. The web has an AC of 15 and 20 hp. The target can make a 17 STR saving throw to break free from the web wrapping. 

Spitting Acid (6 Recharge). The matron spits a large acidic web in a 60ft. cone. All creatures within range must make a DC 17 Dex or take 8d8 acid damage. On a fail, the creature is restrained and must use an action to break free with a DC  15 Str. save. On a success, a creature takes half damage and isn't restrained. All nonmagical armor and weapons a creature possess take a -5 penalty.  

Legendary Actions

Legendary Actions

The Matron can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature's turn. The Matron regains spent legendary actions at the start of its turn.

Web (1 Action). The Matron makes a single web attack.

Bite (2 Actions). The Matron makes a single bite attack on a creature in her web. 

Lair and Lair Actions

 

On initiative count 1 (losing initiative ties), the Matron takes a lair action to cause one of the following effects; the Matron can’t use the same effect two rounds in a row:

  • The Matron can choose a corpse within one of her webs. Roll a d20. On a roll of 17-20, a Giant Undead Spider Corpse exits the web and acts on the same initiative as the liar
  • The web cocoons throughout the liar begin to react violently. With this effect, 1d4 web cocoons of the Matron's choice explode into sludge webbing with causes difficult terrain in a 20-foot square. This action has no effect if there are no web cacoons remaining in the liar. 
  • The acidic liquid in the liar begins excreting poisonous smoke. Every Creature within 10ft of the acid pool must a DC 15 Con save or take 3d10 poison damage and become poisoned.  On a success, the creature takes half damage and isn't poisoned 

 

Habitat: Underdark

Head_Weigh

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