Honestly MAJOR Missed Opportunity For Karlach To Have Some Kind Of Permanent 'buff' That Deals Minor

Honestly MAJOR missed opportunity for Karlach to have some kind of permanent 'buff' that deals minor fire damage to anyone who touches her in melee. Like obviously it'd be strong for fighting beasts, because every time they hit her with claws/fangs they take damage, but just from a STORY-TELLING ASPECT?

How heartbreaking would it be when you're trying to cast Cure Wounds on her? In order to heal her, you have to hurt yourself and she KNOWS IT. You go to cast Longstrider on the party and you hesitate as you reach Karlach. Yeah, it's only a few points of damage, it's not that big a deal, but does she REALLY need it? Is it worth it?

You linger, hesitate. You realize you don't want to touch her. You realize that's what EVERYONE thinks when they see her. You realize she KNOWS You're hesitating, staring at her sheepishly as you try to think of whether or not it's worth the pain just to help her.

You learn to support her from a distance. Healing Word. It's not as effective, but you don't need to get hurt for her sake. And so she learns to get used to receiving help from a distance. Just words of encouragement. It's all anyone wants to give her. Maybe it's all she'll ever get.

Aid? Bardic Inspiration? You don't need to touch her to give it to her. You can keep her at a distance and not get burned. And you're still helping her.

It's just... cold.