Talk:Hollow Child (5e Creature)
This creature has too many hit points, immunities, senses and abilities for its CR of 0. In addition, the spell level needed to reverse the transformation is out of proportion, unlikely to be found at both the imposed the time limit and the level the creature can be found. While relativly harmless on its own, 5 of these creature can cause an almost unavoidable TPK, since they are literally unstoppable and inescapable. So, while a creative and horrifying way to TPK your party, the CR should be adjusted to reflect the threat they pose. I, however, have no idea how high would be appropriate.
--Doctor Dee (talk) 14:10, 16 February 2019 (MST)
I looked up "creating a monster" and noticed several issues:
If you quadtruple its hit points, based on it having both numerous immunities and resistances and being able to reform within hours and thus attack a party more than once per day, you achieve an effective hit points rating of 188, more befitting of a CR of 8. This is somewhat offset by its low baseline AC of 11, but not much, since hitting it will produce few effects for most characters. Speaking of hit points, the d8 are not average for small sized creature and don't add up with it's 37 hp. the creature is more likely to have 13d6 or 14d6, neither of which can achieve the listed amount of hp, potentially increasing its hp even more.
If charisma is the ability score for its spellcasting and strength the score for its touch attack, the creature has a proficiency bonus of +6, more appropriate for a CR of 17-20. It's attack bonus is CR 4.
While it does not have offensive abilities on its own, it's damage increases to banshee like level when 5 or more are present, raising its offensive power to the levels of a banshee. (being able to incapacitate players on a failed save) This puts the offensive CR to something like 4 to 6, likely more, since i think the banshee is already very powerful for its CR. Thus i would propose a base CR of 4 (it could be manipulated into serving as the aid of another monster, removing player character from combat through his calming touch) and raise it to 7 if encountered in groups of five or more, at the very least. (compare it to a hag coven for this)
--Doctor Dee (talk) 22:44, 16 February 2019 (MST)