As an entity of pure light and radiation, it is hard to fathom exactly what the star-crossed wants. It is also hard to predict what it will do in any given circumstance because it perceives and reacts to stimuli differently than any flesh and bone creature would. However, most suspect is trying to either atone for, or fulfill the lives of a pair of lovers it accidentally obliterated when it arrived on this sphere. The couple, an elven male and human female, went out to watch falling stars not knowing one would fall on them in turn. The elemental can take the shape of either creature it reduced to atoms and in turn takes on quirks they may have had in life but only in a pantomime fashion. When threatened, or when it believes it is threatened rather, the star-crossed reverts back into its natural form of unidentifiable colors and drives off attackers with potent energy blasts and searing touches. If it takes too much damage, it lashes out with alien frequencies that temporarily twist the forms of every living thing around it until they flee.

The Star-Crossed

Medium elemental (shapechanger), chaotic neutral

Armor Class 16 (natural armor)

Hit Points 85 (10d8 + 40)

Speed 30ft

Str 14 Dex 14 Con 18 Int 11 Wis 18 Cha 16

Damage Resistances bludgeoning, piercing, and slashing from nonmagical attacks

Damage Immunities cold, fire, poison

Condition Immunities poisoned

Senses darkvision 120 ft., truesight 30 ft., passive Perception 14

Languages understands All but cannot speak

Challenge 8 (3,900 XP)

Magic Resistance.

The Star-Crossed has advantage on saving throws against spells and other magical effects.

Limited Telepathy.

The Star-Crossed can magically communicate simple ideas, emotions, and images telepathically with any creature within 90 ft. of it.

Mutagenic Rampage.

Whenever the Star-Crossed starts its turn with half hit points or fewer, roll a d6. On a 6, the elemental goes berserk. On each of its turns while berserk, the Star-Crossed attacks the nearest creature it can see. If no creature is near enough to move to and attack, the Star-Crossed attacks an object, with preference for an object smaller than itself. Once the Star-Crossed goes berserk, it continues to do so until it is destroyed or regains all its hit points.

At the beginning of each of the Star-Crossed creature's turns, all other creatures within 20ft must succeed on a DC 15 Constitution save or Mutate and roll on the chart below.

1 - The creature shrinks as per the Enlarge/Reduce spell.

2 - The creature grows as per the Enlarge/Reduce spell.

3- The creature gains advantage on all Strength-based rolls, but disadvantage on all Dexterity based rolls.

4- The creature gains advantage on all Dexterity-based rolls, but disadvantage on all Strength based rolls.

5- The creature's Intelligence is reduced to 3, however, it now deals an additional 1d10 damage on all melee attacks.

6 - The creature's Strength is reduced to 5, however, its spells and spell-like abilities gain +2 DC.

This mutation lasts for 24 hours. A lesser restoration or like spell will cure the mutation.

Shapechanger.

The Star-Crossed can use its action to polymorph into an elven male or human female. Its statistics, other than its size, are the same in each form. Any equipment it is wearing or carrying isn't transformed. It burns away to starlight and screams if it dies.

Actions

Multiattack.

The elemental makes two pseudopod attacks.

Pseudopod.

Melee Weapon Attack: +5 to hit, reach 10 ft., one target. Hit: 6(1d8+2) bludgeoning damage plus 4(1d8) fire damage.

Strange Starlight.

Ranged Spell Attack: +6 to hit, range 90 ft., one target. Hit: 17 (3d8+4) fire damage. The target must succeed on a DC 14 Constitution saving throw or its hit point maximum is reduced by an amount equal to the damage taken. This reduction lasts until the target finishes a long rest. The target dies if this effect reduces its hit point maximum to 0.

Mesmerize.

The Star-Crossed locks eyes with a creature it can see within 60-ft. The target must succeed on a DC 14 Wisdom saving throw or be paralyzed for the duration. At the end of each of its turns, the target can make another Wisdom saving throw. On a success, the effect ends on the target. The Star-Crossed can only mesmerize one target at a time.