First, I support burrowing (or as you want to call it) being a thing.
Second, in the previous thread I proposed
this subpower of Preparation and Bobsican said that it might be better to integrate it in the Preparation page, instead of being its own power, and I'm fine with it.
What do you think?
Third, I have another idea regarding those characters who are usually followed by helpers, supporters, minions and else, to the point that they are part of the characters' idea.
Currently we list them as standard equipment or we don't make bug distinctions the profile (or maybe it's specified inside brackets in various sections), and my idea was to give a name and a page to this thing.
It's different from both outside help and my previous proposal because those secondary characters are always or most of the time alongside the main character but aren't independent enough (In terms of personality or not) to have their own page or being conceptualized without the main character.
Some examples would be those characters who bring monsters, slaves, animals, minions, pets or even friends etc... always with them, as outsiders on their own, contained in their body or objetcs, shaped or morphed as tools and weapons or anything else.
In short, a pseudo living equipment or everlasting companion, I don't know if I explained it well enough.