Midgar Mist and FF6

[Wolf Kanno]

Yeah.....she's a descendant of Esper magic....on her Mum's side. I get the impression Strago is her maternal grandfather by blood, that its not some kind of Vivi/Quan adoptive grandpa thing.

Actually it is a Vivi/Quan deal. There's a villager that mentions that Relm isn't related to Strago by blood. He was likely a friend of Relm's mother.

Although....Im pretty sure Kanno said something about if you get that magic stat to 140 it resets to 0. I got nowhere near that...but that magic stat only has to be 50 to knock out 9999 with Ultima

Yeah it's magic glitch in the game. It has to be pretty insanely high to do it though. Technically, I think if the magic stat gets to something like 90, it's enough to make Level 1 elemental spells do max damage so it's really unnecessary to go that far.

dont she learn meteor aswell at like lvl 90 or something

That's Celes actually, her ultimate spell is Meteor while Terra's is Ultima.

Also for Midgard Mist: