b'Elethu \n'b'  Medium   elemental ,  neutral evil  \n'b'  Armor Class  12 (description)  Hit Points  99 (18d8+18)  Speed  fly 40 ft.\n'b' STATS STR: 11 (+0) DEX:  15 (+2)  CON:  12 (+1)  INT:  13 (+1)  WIS:  16 (+3)  CHA:  15 (+2)  \n'b'\n'b'\n'b'\n'b'\n'b'\n'b'\n'b'  Skills   Deception  +5,  Persuasion  +5  Saving Throws   Dexterity  +5,  Charisma  +5  Damage Immunities  cold, Lightning  Damage Resistances  bludgeoning, piercing, and slashing from non-magical weapons  Senses  passive  Perception  13  Languages  Common, Primordial  Challenge  5 (1,800 XP) \n'b' SPECIAL TRAITS \n'b'\n'b'  Innate Spellcasting . The elethu can innately cast  lightning bolt  5 times per day (Save DC 15). \n'b'\n'b' ACTIONS \n'b'\n'b'  Slam .  Melee Weapon Attack : +3 to hit, reach 5 ft., one target.  Hit : 5 (1d10) bludgeoning damage. \n'b'  Engulf . The creature can attempt to engulf any creature of  size  large or smaller. The target must make a  Dexterity  save (DC 16) to avoid the effect. An engulfed creature is considered  restrained  and automatically takes Slam damage each round. Further, if a creature has been engulfed for 1 round or more, the elethu can attempt its  moonbeam  transformation on them. Each round, the target may use its action to make either a  Strength  or  Dexterity  save (their choice) against a DC 16, escaping the engulf on a success. \n'b'  Moonbeam Transformation . This can only be used on engulfed targets. The target must make a  Constitution  save (DC 15). On a failed save, the target is transformed into a beam of moonlight. It is unable to move,  attack  or communicate in this form. The target can repeat the save once per day at dawn. The effect can also be removed with a  Dispel Magic  or  Greater Restoration . \n'b'\n'b' The elethu are millions of strands of  light , bound together by a powerful conscious. These creatures appear as beautiful women, with long hair, often reaching to their waist or beyond. Their skin is a silvery color as is their hair. The hair itself morphs into a very long gown that trails behind the creature or levitates around it. They do not walk as much as float over the ground. When angered, their form changes, shifting into something that far more resembles a living cloak than that of a woman. \n'b'  Reclusive . The elethu love water and seek it out whenever they can. They often build their dens beneath the water or at least in caves and hidden grottos. They are solitary creatures and do not readily seek anyone\xe2\x80\x99s company. They do not speak any language known to man, magical or otherwise. They see most living creatures as disturbances only and have little if anything to do with them. \n'b'  Hatred of Light . While elethu are creatures of  light , they are also jealous of all other  light , seeking to be the only  light  in an area. The best way to elicit a response from an elethu is to enter its den with any  light  source, natural or magical. The sight of this enrages them and they  attack  whoever bears the torch, lantern, or magical flame. Spell-like effects can garner this response, such as a  faerie fire ,  light  spell, and so forth. Normal magical swords that emanate a muted  light  do not. When enraged, elethus shed their female forms, shifting into a billowing curtain of  light . They use their lightning strike to kill whoever angers them, usually the torchbearer.'