[@Mega Birb]
If it has a name then he feels the emotional pain. If it's unnamed then there's no feeling.

Honestly the only things setting apart the named and unnamed creatures is that the unnamed creatures dispel after their goal is accomplished. Stumpy managed to break this as he is bound to be a servant and to guard the hovel Bonesword lives in, and Charlie isn't really a construct of Bonesword more or less a pet that he has been growing for a good while now.

If Plantera was able to be obtained, it would fall under the named category and would not dispel once it's goal of destroying everything was accomplished and it would remain under Bonesword's control.

I'm down for the collab to just get Bonesword access to summoning Plantera. I'd need Marquis to oversee the mission though and make sure that BS isn't trying to destroy all of Hyperion with his skills.

EDIT: Would like to note that Bonesword can create a giant construct provided he had a redwood tree.