Mercymorn is the single most fanfiction adaptable character in the existence and we're missing out by not realising it. There is no fucking situation you can't put canon compliant Mercymorn into and not be able to make it fit - imagine what non canon compliant Mercy might be able to do.
Beside the infinite ageplay potential via canon typical "i cast: you're 5 years old" behavior, this is the single most gore-compliant character I have ever seen in media. This bitch disintegrated god, putting her in an alternative universe is like releasing an invasive species on a secluded island. She's so done with people and knows the human body by memory; every absurd, physically impossible kink and fetish can be explained and executed via Mercymorn being there. She literally went to an orgy she didn't want to go to, to steal sperm, she gives no fucks about anything and therefore is the perfect "character randomly added to polycule" candidate.
We need to be more insane about this because this is the Fanfiction Situation Character. I'm not saying everybody needs to write over the top Mercymorn fanfiction; I just think adding her would make the situation better or worse, depending on what you want.
If you're still in doubt, consider what her reaction would be if you did it, and if it's not "acid jail" you're still less outlandish than John Gaius and she would probably choose your fanfic over spending 5 more minutes with him.




















