Spider Climb. The spider can climb difficult surfaces, including upside down on ceilings, without needing to make an ability check.

Web Sense. While in contact with a web, the spider knows the exact location of any other creature in contact with the same web.

Web Walker. The spider ignores movement restrictions caused by webbing.

Innate Spellcasting. Abyssal Hive Spider's innate spellcasting ability is Charisma (spell save DC 15). It can innately cast the following spells, requiring no material components.

At will: Thaumaturgy

3/day each: Detect Thoughts(C)

1/day: Blink, Confusion(C)

Hive Mind. Abyssal Hive Spider has control over any hive corpse it created with its ability. It has telepathy with the hive corpses as long as they are on the same plane of existence.

Bite. Melee Weapon Attack: +8 to hit, reach 5 ft., one creature. Hit: 14 (2d8 + 5) piercing damage, and the target must make a DC 13 Constitution saving throw, taking 18 (4d8) poison damage on a failed save, or half as much damage on a successful one. If the poison damage reduces the target to 0 hit points, the target is stable but poisoned for 1 hour, even after regaining hit points, and is paralyzed while poisoned in this way.

Whispers of Pain. The Spider whispers a discordant melody that target only one creature of its choice within 60 ft., that can hear, wracking it with terrible pain. The target must make a DC 15 Wisdom saving throw. On a failed save, it takes 3d6 psychic damage and must immediately use its reaction, if available, to move as far as its speed allows away from The Spider. The creature doesn’t move into obviously dangerous ground, such as a fire or a pit. On a successful save, the target takes half as much damage and doesn’t have to move away. A deafened creature automatically succeeds on the save.

Web (Recharge 5–6). Ranged Weapon Attack: +8 to hit, range 30/60 ft., one creature. Hit: The target is restrained by webbing. As an action, the restrained target can make a DC 13 Strength check, bursting the webbing on a success. The webbing can also be attacked and destroyed (AC 10; hp 5; vulnerability to fire damage; immunity to bludgeoning, poison, and psychic damage).

Create Hive Corpse. If a creature is paralyzed and poisoned. The Abyssal Hive Spider can inject thousands of childrens into the target with a hidden stinger in her abdomen. The victims body is then linked to The Abyssal Hive Spider through her Hive Mind ability. Once the target is no longer paralyzed, It awakens from its slumber as a Hive Corpse with the charmed condition and is poisoned for as long as the spiders are inside of it. A greater restoration spell, expels the tiny spiders from the body, causing 22 (4d10) Necrotic damage. The target also loses the charmed condition and is free from the control of the Abyssal Hive Spider. The Abyssal Hive Spider cannot create more then one Hive Corpse every 7 days.

Mark of the Hunter. The spider choose a creature it can see within range and mystically mark it as its prey. The spider deal an extra 1d6 damage to the target whenever it hits it with an attack, and it has advantage on any Wisdom (Perception) or Wisdom (Survival) check it make to find the target.

Instinctive Shield (3 uses). when the spider is hit by an attack or targeted by the magic missile spell. It can add +5 bonus to its AC until the start of its next turn, including against the triggering attack, and the spider takes no damage from magic missile.