Crag Spider (5e Creature)
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Large beast, unaligned
Skills Stealth +7
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 Walk. The spider ignores movement restrictions imposed by webbing.
Multiattack. The spider makes three melee attacks: one with its bite, and two with its legs, then uses its Web if it can.
Bite. Melee Weapon Attack: +5 to hit, reach 5 ft., one creature. Hit: 12 (2d8 + 3) piercing damage, and the target must make a DC 12 Constitution saving throw, taking 9 (2d8) 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 paralysed while poisoned in this way.
Leg. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 8 (1d10 + 3) bludgeoning damage.
Web (Recharge 5-6). Ranged Weapon Attack: +5 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 12 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).
Crag spiders are massive spiders that live underground with thick, stony carapaces that allow them to blend in perfectly with their surroundings. They can go without food for weeks at a time, remaining absolutely still in wait for the chance to ambush potential prey, while using sturdy webbing to encourage creatures to travel towards it. When an unwary victim wanders past, they strike, delivering a painful bite loaded with poison, then striking with their heavy forelegs to beat prey into submission. Any prey that attempts to escape is foiled by a flung web, and any prey that fights back will often do little to nothing to the formidable carapace of the crag spider.