Editing D&D Optimization (section)

=== Samurai ===
You picked a Samurai, widely regarded as the absolute worst full BAB class in the game, the sheer amount of suck you bring to the table is so great that you hurt your party by just being there.  There is no optimizing this class out of the tier 6 pit of shame it inhabits.  If your DM forced you to play a Samurai, you can rules-lawyer your way out of this hole with the definition of "Daisho Proficency."  That doesn't have to be the weeaboo bastard-sword-plus-shortsword combo; play a dwarf samurai and getyourself dual battleaxes, or a battleaxe/warhammer combo for your daisho.  Also, "Daisho Proficiency" isn't "Katana Proficiency and Wakazashi Proficiency," so you should be able to fast-talk your DM into allowing "Daisho Weapon Focus" and "Improved Critical: Daisho" and so on, giving you two feats each time for the price of one.  Also: use your bastard-sword/katana two-handed for the extra damage, then Quick Draw your shortsword/wakazashi to finish your routines.  If your DM bitches, point out that you were FORCED to play a Samurai, so you had to get creative.