The prompt
create a creature that lurks in the sewers of a fantasy city that sometimes comes out at night to hunt people. the creature should have a unique appearance and have some strange magical power
The Text
The Sewer Stalker is a hulking beast that lurks in the dank sewers beneath the city streets. Standing over 7 feet tall, its slimy green skin glistens in the dim light that filters down through the sewer grates. Its long, muscular limbs end in razor-sharp claws capable of tearing through flesh and bone with ease.
The Stalker's head is elongated and lined with rows of small, glowing yellow eyes that pierce through the darkness. A mouth filled with pointed fangs drips with viscous drool. Strange symbols and runes glow faintly across its mottled hide.
By day, the Sewer Stalker slumbers in the deepest, most isolated tunnels. But when night falls, it awakens with a ravenous hunger. It creeps up through the sewers, lifting grates with its unnatural strength to emerge onto the streets in search of prey.
With preternatural speed and agility, the Stalker dashes through the shadows, snatching up victims in its jaws or slicing them open with its vicious claws. It then drags its prey back below ground, leaving behind only bloody trails. Its eerie, echoing cries reverberate through the sewers as it feeds.
The Sewer Stalker possesses an innate magical ability to blend into the shadows. Despite its massive size, it can seem to disappear into thin air, only to reappear right behind its chosen victim. Some believe it was cursed into this monstrous form centuries ago by a powerful sorcerer, doomed to eternally haunt the city's underbelly. Others suggest it is not of this world at all, but rather a demonic entity sent to terrorize the city folk. Whatever its origins, the Sewer Stalker is greatly feared by all who know of its existence.
The Image
The Statblock
Sewer Stalker
Large aberration, chaotic evil
Armor Class: 15 (natural armor)
Hit Points: 152 (16d10 + 64)
Speed: 40 ft., climb 40 ft.
STR DEX CON INT WIS CHA
19 (+4) 14 (+2) 18 (+4) 7 (-2) 12 (+1) 8 (-1)
Saving Throws: Dex +5, Con +7, Wis +4
Skills: Stealth +8
Senses: darkvision 120 ft., passive Perception 11
Languages: -
Challenge: 6 (2,300 XP)
Shadow Camouflage. While in dim light or darkness, the sewer stalker can take the Hide action as a bonus action.
Keen Smell. The sewer stalker has advantage on Wisdom (Perception) checks that rely on smell.
Pounce. If the sewer stalker moves at least 20 feet straight toward a creature before hitting it with a claw attack on the same turn, that target must succeed on a DC 15 Strength saving throw or be knocked prone. If the target is prone, the sewer stalker can make one bite attack against it as a bonus action.
Actions:
Multiattack. The sewer stalker makes two attacks: one with its bite and one with its claws.
Bite. Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 15 (2d10 + 4) piercing damage.
Claws. Melee Weapon Attack: +7 to hit, reach 10 ft., one target. Hit: 11 (2d6 + 4) slashing damage.
Spine Volley (Recharge 5-6). Ranged Weapon Attack: +5 to hit, range 30/120 ft., one target. Hit: 18 (4d6 + 2) piercing damage.
Reactions:
Unsettling Gaze. When a creature the sewer stalker can see makes an attack roll against it, the sewer stalker forces the attacker to reroll the d20 and use the new result.