Oblexes
By experimenting on the slimes, jellies, and puddings that infest the depths of the Underdark, mind flayers created a special breed of Ooze, the oblex--a slime capable of assaulting the minds of other creatures. These pools of jelly are cunning hunters that feed on thoughts and memories. The sharper the mind, the better the meal, so oblexes hunt targets more likely to be intelligent, such as wizards and other spellcasters. When suitable fare comes within reach, an oblex draws its body up to engulf its victim. As it withdraws, it plunders the creature's mind, leaving its prey befuddled and confused--or dead.
Jump to: Oblex Spawn | Adult Oblex | Elder Oblex
When oblexes feed on thoughts, they can form weird copies of their prey to use as lures, which helps them harvest even more victims for their mind flayer masters.
Oblex Spawn
An oblex devours memories not only to sustain its existence, but also to spawn new oblexes. Each time it fully drains the memories of a victim, it gains the creature's personality--now twisted by the oblex's foul nature. The more memories an oblex steals, the larger it becomes, until it must shed a personality it has absorbed or else become uncontrolled and erratic. This act spawns a new oblex.
Newly formed oblexes lack the capabilities of their older kin. They seek only to feed on memories and grow until they can impersonate their victims.
Environment
Underdark
Token
Oblex Spawn
Tiny Ooze, Typically Lawful Evil
- Armor Class 13
- Hit Points 18 (4d4 + 8)
- Speed 20 ft.
STR DEX CON INT WIS CHA 8 (-1) 16 (+3) 15 (+2) 14 (+2) 11 (+0) 10 (+0)
- Proficiency Bonus +2
- Saving Throws Int +4,Cha +2
- Damage Vulnerabilities
- Damage Resistances
- Damage Immunities
- Condition Immunities blinded,charmed,deafened,exhaustion,prone
- Skills
- Senses blindsight 60 ft. (blind beyond this radius),passive Perception 12
- Languages --
- Challenge 1/4
Amorphous. The oblex can move through a space as narrow as 1 inch wide without squeezing.
Aversion to Fire. If the oblex takes fire damage, it has disadvantage on attack rolls and ability checks until the end of its next turn.
Unusual Nature. The oblex doesn't require sleep.
Actions
Pseudopod. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 5 (1d4 + 3) bludgeoning damage plus 2 (1d4) psychic damage.
Adult Oblex
Older oblexes, called adults and elders, have eaten so many memories that they can form duplicates of the creatures they have devoured from the substance of their bodies, sending these copies off to lure prey into their clutches while remaining tethered to the slime by long tendrils of goo. These duplicated creatures are indistinguishable from their victims except for a faint sulfurous smell. Oblexes use these duplicates to lead prey into danger or to infiltrate settlements so they can feed on superior victims.
Environment
Underdark
Token
Adult Oblex
Medium Ooze, Typically Lawful Evil
- Armor Class 14
- Hit Points 75 (10d8 + 30)
- Speed 20 ft.
STR DEX CON INT WIS CHA 8 (-1) 19 (+4) 16 (+3) 19 (+4) 12 (+1) 15 (+2)
- Proficiency Bonus +3
- Saving Throws Int +7,Cha +5
- Damage Vulnerabilities
- Damage Resistances
- Damage Immunities
- Condition Immunities blinded,charmed,deafened,exhaustion,prone
- Skills Deception +5,Perception +4,plus one of the following: Arcana +7,History +7,Nature +7,or Religion +7
- Senses blindsight 60 ft. (blind beyond this radius),passive Perception 14
- Languages Common plus two more languages
- Challenge 5
Amorphous. The oblex can move through a space as narrow as 1 inch wide without squeezing.
Aversion to Fire. If the oblex takes fire damage, it has disadvantage on attack rolls and ability checks until the end of its next turn.
Unusual Nature. The oblex doesn't require sleep.
Actions
Multiattack. The oblex makes two Pseudopod attacks, and it uses Eat Memories.
Pseudopod. Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 11 (2d6 + 4) bludgeoning damage plus 7 (2d6) psychic damage.
Eat Memories. The oblex targets one creature it can see within 5 feet of it. The target must succeed on a DC 15 Wisdom saving throw or take 18 (4d8) psychic damage and become memory drained until it finishes a short or long rest or until it benefits from the greater restoration or heal spell. Constructs, Oozes, Plants, and Undead succeed on the save automatically.
While memory drained, the target must roll a d4 and subtract the number rolled from its ability checks and attack rolls. Each time the target is memory drained beyond the first, the die size increases by one: the d4 becomes a d6, the d6 becomes a d8, and so on until the die becomes a d20, at which point the target becomes unconscious for 1 hour. The effect then ends.
The oblex learns all the languages a memory-drained target knows and gains all its skill proficiencies.
Spellcasting (Psionics). The oblex casts one of the following spells, requiring no spell components and using Intelligence as the spellcasting ability (spell save DC 15):
3/day each: charm person (as 5th-level spell), detect thoughts, hypnotic pattern
Bonus Actions
Sulfurous Impersonation. The oblex extrudes a piece of itself that assumes the appearance of one Medium or smaller creature whose memories it has stolen. This simulacrum appears, feels, and sounds exactly like the creature it impersonates, though it smells faintly of sulfur. The oblex can impersonate 1d4 + 1 different creatures, each one tethered to its body by a strand of slime that can extend up to 120 feet away. The simulacrum is an extension of the oblex, meaning that the oblex occupies its space and the simulacrum's space simultaneously. The tether is immune to damage, but it is severed if there is no opening at least 1 inch wide between the oblex and the simulacrum. The simulacrum disappears if the tether is severed.
Elder Oblex
(No description given)
Environment
Underdark
Token
Elder Oblex
Huge Ooze, Typically Lawful Evil
- Armor Class 16 (natural armor)
- Hit Points 115 (10d12 + 50)
- Speed 20 ft.
STR DEX CON INT WIS CHA 15 (+2) 16 (+3) 21 (+5) 22 (+6) 13 (+1) 18 (+4)
- Proficiency Bonus +4
- Saving Throws Int +10,Cha +8
- Damage Vulnerabilities
- Damage Resistances
- Damage Immunities
- Condition Immunities blinded,charmed,deafened,exhaustion,prone
- Skills Arcana +10,Deception +8,History +10,Nature +10,Perception +5,Religion +10
- Senses blindsight 60 ft. (blind beyond this radius),passive Perception 15
- Languages Common plus six more languages
- Challenge 10
Amorphous. The oblex can move through a space as narrow as 1 inch wide without squeezing.
Aversion to Fire. If the oblex takes fire damage, it has disadvantage on attack rolls and ability checks until the end of its next turn.
Unusual Nature. The oblex doesn't require sleep.
Actions
Multiattack. The elder oblex makes two Pseudopod attacks, and it uses Eat Memories.
Pseudopod. Melee Weapon Attack: +7 to hit, reach 10 ft., one target. Hit: 17 (4d6 + 3) bludgeoning damage plus 14 (4d6) psychic damage.
Eat Memories. The oblex targets one creature it can see within 5 feet of it. The target must succeed on a DC 18 Wisdom saving throw or take 44 (8d10) psychic damage and become memory drained until it finishes a short or long rest or until it benefits from the greater restoration or heal spell. Constructs, Oozes, Plants, and Undead succeed on the save automatically.
While memory drained, the target must roll a d4 and subtract the number rolled from its ability checks and attack rolls. Each time the target is memory drained beyond the first, the die size increases by one: the d4 becomes a d6, the d6 becomes a d8, and so on until the die becomes a d20, at which point the target becomes unconscious for 1 hour. The effect then ends.
The oblex learns all the languages a memory-drained target knows and gains all its skill proficiencies.
Spellcasting (Psionics). The oblex casts one of the following spells, requiring no spell components and using Intelligence as the spellcasting ability (spell save DC 18):
At will: charm person (as 5th-level spell), detect thoughts
3/day each: dimension door, dominate person, hypnotic pattern, telekinesis
Bonus Actions
Sulfurous Impersonation. The oblex extrudes a piece of itself that assumes the appearance of one Medium or smaller creature whose memories it has stolen. This simulacrum appears, feels, and sounds exactly like the creature it impersonates, though it smells faintly of sulfur. The oblex can impersonate 2d6 + 1 different creatures, each one tethered to its body by a strand of slime that can extend up to 120 feet away. The simulacrum is an extension of the oblex, meaning that the oblex occupies its space and the simulacrum's space simultaneously. The tether is immune to damage, but it is severed if there is no opening at least 1 inch wide between the oblex and the simulacrum. The simulacrum disappears if the tether is severed.