Tlamini

[Infidi]

It's not really that great of a weapon but if you must...

DMG:158 Delay:492
STR+8 Wind Resistance+20
Polearm Skill+67 Parrying Skill+67
Haste+2%

Use Ophidian Lance if you can scrounge up the Plasm from shout groups.

DMG:181 Delay:396
DEX+8 VIT+8
Accuracy+18
Polearm skill+153 Parrying skill+153
Wyvern: Accuracy bonus

What's the best path for Ophidian Trident, out of curiosity? Just depends on if gonna be pure DD or not?

[Umichi]

What's the best path for Ophidian Trident, out of curiosity? Just depends on if gonna be pure DD or not?

Pretty much, but if your able to obatin ophidian start setting your sights on upukirex it's one of the best out there barring ryu when it comes to face melting damage as a drg.

[Babekeke]

What's the best path for Ophidian Trident, out of curiosity? Just depends on if gonna be pure DD or not?

2 upgrades into attack, and wait til you get to kill the boss, rather than wasting your gil on any further upgrades for just 1 att or 1 acc bonus.
You're much better off upgrading the equipment rather than the weapons (particularly the gear that doesn't have anything that beats it already, yet)