the more I think about it, the less and less sense it makes for Terra to be one of the Darknesses in KH3 because like
in literally every moment after Xehanort possesses him we see Terra fighting back. in the Graveyard, in Radiant Garden, and now in darkness limbo as 0.2 showed us, ten years later, we always see Xehanort struggling to control him. why?
because he can’t.
at no point can he fully, 100% smother Terra’s influence.
the only time Xehanort and Terra seem to coexist “peacefully” is during the Apprentice-Xehanort arc – during which time their hearts were sealed and memories presumably lost.
and considering this series is constantly stressing how intelligent and farsighted Xehanort is I just can’t imagine he’s actually stupid enough to count Terra among his 13 when he knows full well by now that Terra is a force to be reckoned with. Terra would require far too much focus and effort to maintain a hold of, because a) IT DIDN’T WORK TWELVE YEARS AGO AND IT DIDN’T WORK TWO YEARS AGO SO WHY WOULD ANYTHING HAVE CHANGED, especially when b) we’ve seen that Terra’s only gotten stronger and more confident since BBS?? and c) I’ve said this before but I’ll say it again: Terra was impossible to control with Xehanort’s whole heart inside him. attempting to control him with only 1/13th of his heart is just? asking for failure? I mean really?? why don’t you just carry around a ticking time bomb while you’re at it man