Rabulias
the Incomparably Shrewd and Clever
The above three should have a note that says "*Only in certain editions. Check with your DM."Why take magic armour?
--- it's more likely to fit, as it can resize itself
--- better saving throws for itself and its wearer
--- often allows higher functional dex than mundane armour of the same type
EDIT: I think the "weighs less" rule also varies by edition, but I'm not certain.