I'm looking at the Epic Level Handbook and I'm not even seeing Duelist in here.
Aha! Found http://archive.wizards.com/default.asp?x=dnd/we/20020706a
. And then it gets updated at https://rpg.rem.uz/Dungeons%20%26%20Dragons/D%26D%203rd%20Edition/WOTC%20Web%20Archive/Web%20Enhancements/Epic%20Insights.pdf
it looks like.
Here is the text from the original web enhancement:
From Sword and Fist
The epic duelist darts and weaves in combat, relying
on his extraordinary agility and cunning to win
Combat-related feats should occupy most of your
bonus slots. Look to Epic Weapon Focus, Epic Prowess,
and Superior Initiative to gain the upper hand. Of
course, no duelist is complete without widespread
recognition, and Epic Reputation does the trick well.
The epic duelist’s most important ability score is Dexterity.
Intelligence bumps help increase your canny
defense. Strength isn’t as significant for most duelists,
since they tend to favor finesse weapons. A duelist who
relies on interaction skills should consider increasing
Charisma from time to time.
Other Options: Epic duelists favoring two-weapon
combat should look to Perfect Two-Weapon Fighting
and Two-Weapon Rend for a boost. To really show off
against lesser mortals, pick up Exceptional Deflection
or Infinite Deflection and watch the enemy archers
gasp in awe.
Hit Die: d10
Skill Points at Each Additional Level: 4 + Int modifier
Precise Strike: Every four levels above 10th, the extra
damage inflicted by the epic duelist’s precise strike
increases by +1d6.
Bonus Feats: The epic duelist gains a bonus feat
(selected from the list of epic duelist feats) every three
levels after 10th.
Epic Duelist Bonus Feat List: Blinding Speed, Epic
Prowess, Epic Reputation, Epic Skill Focus, Epic Speed,
Epic Weapon Focus (rapier), Exceptional Deflection*,
Improved Combat Reflexes, Improved Whirlwind
Attack, Infinite Deflection*, Perfect Two-Weapon
Fighting, Superior Initiative, Two-Weapon Rend.
*The epic duelist need not have Improved Unarmed
Strike to qualify for these feats.
13 Bonus feat
14 Precise strike +4d6
16 Bonus feat
18 Precise strike +5d6
19 Bonus feat