Dungeons & Dragons 5e Monster : Adult Oblex
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Mordenkainen's Tome of Foes (5e)
Adult Oblex CR: 5
STR
8 -1
DEX
19 +4
CON
16 +3
INT
19 +4
WIS
12 +1
CHA
15 +2
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
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.
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.
Suggested Environments
Swamp, Underdark, Urban
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