I know that this thread is a couple years old, but I must make a stand to defend the reality and more-or-less practicality my beloved oversize swords.
Ōdachi
'Nuff said.
Tieflings. Dragonborn are a little weird, but I'll get used to it. The idea of tailed, horned humanoids running around is just annoying though. I wouldn't have any problem with them if they didn't have tails and horns.
I think in my campaign I'm just gonna say "tieflings don't have tails or...