Harpspider, Arctic

Medium monstrosity, unaligned

Armor Class 15 (natural armor)
Hit Points 91 (14d10+14)
Speed 30 ft., climb 30 ft.

STR	DEX	CON	INT	WIS	CHA
15 (+2)	16 (+3)	12 (+1)	6 (-2)	10 (+0)	6 (-2)

Skills Stealth +7
Damage Immunities cold
Senses blindsight 10 ft., darkvision 60 ft.; passive Perception 10
Languages –
Challenge 3 (700 XP)

Special Traits

• Ethereal Jaunt. As a bonus action, the spider can move between the Material Plane and the Ethereal Plane.
• 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.
• Webs. The arctic harpspider’s crystalline web is delicate and easily destroyed, having just 5 hit points for each 5 ft. section. Sections of the web may be suspended to act as an early warning system, woven into bridges and tunnels, or spun into patches of difficult terrain.

Actions

• Bite. Melee Weapon Attack: +4 to hit, reach 5 ft., 1 target. Hit: 1d10+2 (7) piercing damage plus 4d8 (18) poison damage (DC 11 Constitution save halves poison damage). 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.
• Hypnotic Harmonics. The harpspider strums the thin, crystalized strands of its web. Every creature within 300 feet of the harpspider that can hear the tinkling, melodious resonance must succeed on a DC 14 Wisdom saving throw or be charmed until the song ends. In each subsequent round at the end of the creature’s turn it makes an additional Wisdom save against the same DC. If the save is successful than the effect ends. A creature that is charmed moves toward the arctic spider on its turn in the most direct path possible, unless it is somehow blocked. The harpspider must take a bonus action on its subsequent turns to continue singing. It can stop singing at any time. The song ends if the harpspider is incapacitated. A target that successfully saves is immune to this harpspider’s song for the next 24 hours.

About

The arctic harpspider is an otherworldly creature composed of crystallized mineral-rich fluid. This bizarre other-dimensional arachnid possesses a shrewd cunning and is an instinctive skirmish predator. If its quarry resists its mesmerizing harmony, the spider favors darting in to strike then swiftly ducking back out of reach. It often waits until its poison disables a victim before closing in for the kill. It gains nourishment from the vital bodily fluids of its victims but can enter a state of frozen hibernation if prey is scarce. An arctic harpspider weighs 450 pounds and its legs extend 8 feet from its 7-foot-long body.