Why could Killer create little skeletons, and why could those little skeletons absorb bones?
It was actually because of a mutation that had occurred inside her body, involving the Dragon Dagger that didn't belong to this space-time.
A weapon like the Dragon Dagger, dropped by killing a legendary creature, was bound to have some special effects.
For example...
Creating little skeletons.
This really wasn't something the author made up out of nowhere. Wasn't it perfectly normal for weapons in some games to be enchanted with undead-summoning effects like this?
Then Killer absorbed it into her body and gained that ability.
She turned bones into skeletons, then had those skeletons absorb bones to create more skeletons.
With an ability like that, she could probably be called something like SKiller (Summoner Killer).
But for convenience, the names DMurder, SKiller, and Error Insanity would all be reset to their base forms.
Whenever a conflict arose, labels would be added to distinguish them.
Later, Killer used her Shock Waves at the Ancient Battlefield to gather all the bones and skeletons together and blast them to bits.
Fertilizer acquired!!!
Later still, Killer took the Pillar back to the original room, then used determination magic in Snowdin to melt the snow and obtain a water supply.
That was how things stood now.
"Okay, next up..."
Killer looked up.
"Time to grow plants in the sky."
"Why would I even think of doing that!!!"
Killer threw the materials in her hands onto the ground.
"No, the real question is why I accepted it so quickly... Is something still affecting my mind?... There really has been too much going on lately."
Killer pondered for a moment, then decided to stop thinking.
Pulling Shock Waves out of the Void, Killer stood right on Shock Waves and flew