She would timetravel to instigate events (just like her pre-scratch self) she never directly interacted with the other ancestors, except for Condy. But she probably meddled in their affairs

They’re assigned them in their youth

They’re pretty much NPCs

They appear to be robots

You can only be one at a time, and you probably couldn’t go from one to the other. They’re kinda parallels so maybe the cure to grimdarkness (aside from death) would be the lollipop juju

It’d be incredibly rare, but possible. It’d probably be the closest thing to siblings that trolls would get.

Wind being both his Aspect and associated classical element (air), shade represents darkness to parallel Rose’s Light.

There are some Jade blood symbols shown here. 

Nope

One list of every death coming right up