Siltstalker - AI-generated fantasy Monster

Siltstalker

Dungeon workers tell of a shape that follows the smell of fresh oil and soaked rope, appearing where lanterns gutter and the floor turns slick. Old tunnel maps mark certain bends with warnings scratched into stone: do not linger in the blue-dark water. The siltstalker is blamed for missing porters, torn packs, and the eerie sound of something breathing through a grate just before an attack.

MediumMonster(beast)CR Low to Moderateunaligned

Siltstalker

flooded dungeonpredatorambusherdarknessunderdark corruptionearly-floor encounterguardian warped by shadow
HP45AC13SPD30 ft., swim 40 ft.CR2 (450 XP)PerceptionStealthSurvival
STR
12
DEX
16
save
CON
14
save
INT
6
WIS
12
CHA
8
Darkwater Stalker. The siltstalker has advantage on Dexterity (Stealth) checks in dim light, darkness, or while partially submerged in water. It can also attempt to Hide when only lightly obscured by spray, steam, or a broken grate.
Oil Scent. The siltstalker has advantage on Wisdom (Perception) and Wisdom (Survival) checks that rely on smell. It knows when a creature within 60 feet is carrying lamp oil, enchanted oil, or fresh wicks if the scent is not masked.
Mire Glide. The siltstalker has a swimming speed and can move through shallow water and muddy rubble without penalty. A flooded square or channel does not count as difficult terrain for its movement.
Snap Maw. Melee Weapon Attack: to hit, reach 5 ft., one target. Hit: 10 () piercing damage plus 3 () necrotic damage. If the target is Medium or smaller, it must succeed on a Strength saving throw or be pulled up to 10 feet straight toward the siltstalker.
Drain Slip. The siltstalker moves up to half its speed without provoking opportunity attacks. During this movement, it can move through a 1-foot-wide opening, such as a cracked drain or broken grate, as if it were difficult terrain.
Tail Lash. Melee Weapon Attack: to hit, reach 10 ft., one target. Hit: 8 () bludgeoning damage, and the target must succeed on a Constitution saving throw or have disadvantage on its next Wisdom (Perception) check before the end of its next turn as briny muck and snapped fibers clog its senses.
Ambush Flare. When a creature the siltstalker can see enters a space adjacent to a grate, drain, or flooded corner, the siltstalker moves up to 10 feet to a space it can see adjacent to that creature. This movement does not provoke opportunity attacks.
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