I wouldn't know how souls correlates to memory but I assumed that since his human soul was transferred inside the creature he'd have a faint sense of what his old self would do, like a guiding compass with no signs and his memories would constantly try to catch up. Just wanted to keep this up a little just for the beginning.

And yes, all the actions would be general experimentation. Was just wondering if I'd do that for everything or ask about some stuff.
So I'll ask.

-I remember reading in an IC post that wisps could be physically hurt. So are they somewhat between half corporeal and half spirit? Cause you described them as "A floating orb of magical energy" so I wouldn't guess that to be corporeal without reading a post.
-Do they take fall damage?
-Do they need to breathe, sleep, other basic human needs?
-Does a normal wisp have the same intelligence as a human? Say, if we reach the final evolution choosing a form that has the highest possible intelligence among all other evolutions, do our human memories and origins affect that intelligence? The characters are already more intelligent than the creatures so they basically override some negative features, does that apply to positive ones too?

And for the encounters, wanted to borrow a goblin and possibly 2 fairies just to showcase the personality of the wisp.(they are gonna die)
Or I can just write the first days as "dodging and avoiding all conflict" while experimenting.