Cave Leech
Medium monstrosity, neutral
Armor Class
15 (natural armor)
Hit Points
112 (15d8 + 45)
Speed
30 ft., swim 30 ft.
STR
15 (+2)
DEX
11 (+0)
CON
17 (+3)
INT
3 (-4)
WIS
12 (+1)
CHA
6 (-2)
Senses
darkvision 60 ft., tremorsense 60 ft. passive Perception 14
Skills
Perception +4, Stealth +3
Languages
--
Challenge
8 (3,900 XP)
Actions
Multiattack. The leech makes up to four tentacle attacks and can use blood drain on a grappled creature.
Tentacles. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 11 (2d8 + 2) bludgeoning damage. The target is grappled (escape DC 12) if the leech isn’t already grappling a creature, and the target is restrained until the grapple ends. While grappling a creature, the leech can’t use that tentacle. The leech has four tentacles
Blood Drain. Melee Weapon Attack: +5 to hit, reach 5 ft. one creature. Hit: 9 (2d6+2) piercing damage, and the leech attaches to the target. While attached, the leech doesn’t attack. Instead, at the start of the leech’s turns, the target loses 9 (2d6 + 2) hit points due to blood loss.
The leech can detach itself by spending 5 feet of its movement. It does so after it drains 25 hit points of blood from the target or the target dies. A creature, including the target, can use its action to make a DC 12 Strength check to rip the leech off and make it detach.