Is There Something More to Marsh Than Just Emotional Allomancy

There's weird stuff happening with marsh that i feel like we haven't really gotten any adequate explanations about or potential reasonings for. When it comes to scandril at least for me we have to constantly be imagining you know is this a natural byproduct of the environment or is this manipulation by harmony slash discord yeah sure clearly marsh has a lot of things going on that would simply allow him to be a very powerful entity on his ownYeah but there can also be just direct involvement from harmony side when it comes to marsh that we're unaware of.