Which makes a better thief?
Str is the same.
Dex is similar. (1 point doesn't make much difference)
Con is similar. (1 point doesn't make much difference)
Humans have MUCH better Int/Wis.
That makes them better at defusing traps.
Sliths can shed their skin in combat, which is pretty damn nice for a thief.
Does having a high Int/Wis help with setting traps, or only defusing?
I think Humans/Gnomes should get a bonus when making traps
