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Oasis Gnawer - AI-generated fantasy Monster

Oasis Gnawer

Netherese scholars may identify the glowing script as a degraded containment formula, though the creature itself does not understand it. The formula once regulated a defensive construct or magical reservoir below the tower. When the deeper dungeon entity destabilized the old systems, the formula imprinted itself onto the gnawer's growing shell. The creature now patrols the upper under-dungeon because the deeper chambers have become intolerably dangerous.

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LargeMonstrosity(Netherese-mutated monstrosity)CR Early-to-mid dungeon threat, moderate difficultyUnaligned

Oasis Gnawer

NetherilAnaurochAnkheg-likeArcane mutationDesert dungeonAmbush predatorSandglass VestibulePatrol hazard
HP52AC15SPD30 ft., burrow 20 ft., swim 20 ft.CR3 (700 XP)PerceptionStealthSurvival
STR
16
DEX
14
save
CON
15
save
INT
4
WIS
10
CHA
6
Sand Ambusher. The gnawer has advantage on Dexterity (Stealth) checks made to hide in sand, loose soil, shallow water, or ruined maintenance shafts.
Keen Tremorsense. The gnawer can sense the vibrations of creatures touching sand, loose soil, or water within 30 feet. It cannot use this sense to detect creatures flying or standing on solid stone.
Ward-Shy Predator. The gnawer instinctively avoids active Netherese wards and bright magical light. If it starts its turn in bright magical light, it must succeed on a Wisdom saving throw or use its movement to retreat toward the nearest shadow or covered space.
Rushing Claw. The first time each turn that the gnawer moves at least 15 feet straight toward a creature and then hits it with a Claw attack on the same turn, the target must succeed on a Strength saving throw or fall prone.
Multiattack. The creature makes two attacks: one Bite and one Claw, or two Claw attacks.
Bite. Melee Weapon Attack: to hit, reach 5 ft., one target. Hit: 8 () piercing damage plus 3 () force damage. If the target is a creature, it must succeed on a Constitution saving throw or be unable to regain hit points until the start of the gnawer's next turn.
Claw. Melee Weapon Attack: to hit, reach 5 ft., one target. Hit: 6 () slashing damage. If the target is prone, the attack deals an extra 3 () slashing damage.
Glass-Breath. The oasis gnawer exhales a cone of powdered glass in a 15-foot cone. Each creature in that area must make a Dexterity saving throw, taking 14 () slashing damage on a failed save, or half as much damage on a successful one. A creature that fails the save is blinded until the end of its next turn. The gnawer cannot use Glass-Breath again until it finishes a short or long rest, or until it takes radiant damage from a spell of 1st level or higher.
Shattering Plates. When the gnawer is hit by a melee attack from a creature within 5 feet of it, the attacker must succeed on a Dexterity saving throw or take 3 () slashing damage from exploding crystal splinters. The gnawer can use this reaction once per round.
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