monster

Citadel Spider

CR 18

Gargantuan Monstrosity, Neutral Evil

Reveal Stat Block

Armor Class

18 (natural armor)

Hit Points

310 (20d20 + 150)

Speed

50 ft., climb 50 ft.

str

dex

con

int

-2

wis

cha

-1

Traits

Legendary Resistance (3/Day).If the spider fails a saving throw, it can choose to succeed instead.

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

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

Actions

Multiattack.The spider makes two Bite attacks. It can replace one of these attacks with a use of Web Bomb.

Bite.mw 14 to hit, reach 20 ft., one target. ({@damage 2d10 + 8) piercing damage plus 7 (2d6) poison damage.

Web Bomb.rw 14 to hit, range 300 ft./600 ft., one target. ({@damage 3d10 + 8) bludgeoning damage, and the target and all creatures within 10 feet of it must succeed on a 19 Dexterity saving throw or take 10 (3d6) acid damage and have the restrained condition until the start of the spider's next turn.

Reactions.Reactions the creature can take:

Absorb Blow.In response to being hit with an attack roll, the spider's carapace absorbs some of the blow, reducing the damage it takes by 11 (2d10).

Citadel Spider

Citadel spiders aren't smart, but for sheer battlefield power and versatility, they can't be beat.

Lolth's followers breed spiders of all types and sizes, infusing the creatures with foul energy from the Demonweb Pits. Perhaps the most feared of such abominations is the citadel spider. The titanic citadel spider serves as a powerhouse weapon and mobile command post. Wedges of chitin atop a citadel spider's back shield passengers and protect the spider's biological cannon. A citadel spider can launch globs of acidic webbing from its cannon that hold victims in place until the spider can eviscerate them with its serrated jaws.