What if Momster adapted to nature earlier in her corruption?
Before ya say anything; yes, i know she looks a bit cursed, but I got my reasons. For one, she's a slew of things slapped together, with a horror movie thrown in for good measure. On top of that, she somewhat breaks a few other "SU rules" but there's no fun in being a stickler.
Infodump/lore coming at ya;
So, to start off; let's just say that maybe a few weeks or even days after her corruption, she came across a baby animal that was hurt and it allowed her maternal instinct to flare and grow a lot quicker, thus she didn't feel a need to venture out of her woodland area to cure her boredom.
And as such, she keeps assisting animals, ranging from smaller easier creatures like birds, rodents and other woodland critters, gradually working her way up to larger animals like deer, goats, wolves and even mountain lions and bears. Being the resourceful bean she is, she quickly learns their ways of survival and begins to slowly adapt to her new environment. Each time she poofs, her body changes. And every time, animals sit vigil awaiting her return.
With her helping all the animals equally, she gains a sort of respect from them and they gradually view her as a leader. Having bonded with animals, she feels a need to protect them thus humans, mostly poachers and hunters are on her blacklist. For the most part, she doesn't want to hurt them for some odd reason, but she does break their weapons and have her animal friends scare them off.
From then it becomes clear that hunting is off limits in the Delmerva forest, and I'd think Ronaldo would make a big stink, calling her a "Forest Guardian." While initially a foolish notion, the evidence and testimonials from former hunters stacked in his favor, and thus everyone started leaving her offerings to "appease" her and allow access.
She's fine and accepts the offerings, but she really just wants to keep the forest safe.
On to the design choices. Why?
Well, for starters, her design is somewhat based on most woodland based legends and myths, with her uncanny appearance loosely based on The Moder from horror movie "The Ritual." Only, unlike The Moder, she doesn't force anyone into a cult and cares about the well-being of other creatures.
Every time she poofed, it was to benefit to her environment somewhat, as shown in the picture above.
And what about the green stuff all over her and the hand vines??
Simple; this is where the logic truly breaks; that right there is Rose's moss; she somehow fused with it. How, I don't know, maybe she ate some, laid in it or what have you, but now it's become a part of her; and thus she can grow plants and flowers on herself at will. And while it's not official; I read that invisible monster from the Island episode was responsible for the fish and bait, since they looked so similar to her Uncorrupt design.
Regardless, I'm taking it. She can grow fruit on her tree; apples by default, but since she's a reader character, the fruit can vary in kind.
As for her behavior; she's much more lucid, kind of like Lion; he's aware of things but a bit more animal-like in behavior. She's also relatively quiet. I'm debating whether or not to have her know to speak English or Gem Gylph.
How she meets og Steven, I'm calibrating; on one hand he could stumble across her during his venture with Onion or maybe it was a mission.