Let's try this again. I wasn't completely happy with the earlier version, so I hammered this one out.

Human, Neutral Evil
STR 18
DEX 10
CON 10
INT 14
WIS 8
CHR 12

Final BAB (holding nonmagical Rapier): +37/+32/+27/+22
Final AC (naked): 28
Final HP: ~300

NOTE: This character can't even use a Rapier until Level 11. So use any simple weapon you like until then.

Level 1 -- Bard
Skills: Discipline 4, Hide 4, Lore 4, Tumble 4, UMD 4
Feats: Luck of Heroes, Power Attack

Level 2 -- Bard
Skills: Discipline 1, Hide 1, Lore 1, Tumble 1, UMD 1

Level 3 -- Bard
Skills: Discipline 1, Lore 1, Tumble 1, UMD 1
Feats: Cleave

Level 4 -- Bard
Skills: Discipline 1, Lore 1, Tumble 1, UMD 1
STR 1

Level 5 -- Pale Master
Skills: Lore 1, Listen 1, Persuade 1, SC 8

Level 6 -- Pale Master
Skills: Lore 1, Listen 1, Persuade 1, SC 1
Feats: Great Cleave

Level 7 -- Pale Master
Skills: Lore 1, Listen 1, Persuade 1, SC 1

Level 8 -- Pale Master
Skills: As above
STR 1

Level 9 -- Pale Master
Skills: As above
Feats: Knockdown

Level 10 -- Pale Master
Skills: As above

Level 11 -- Blackguard
Skills: Discipline 7, Lore 1

Level 12 -- Blackguard
Skills: Discipline 1, Lore 1
Feats: Weapon Focus: Rapier
STR 1

Level 13 -- Blackguard
Skills: As above

Level 14 -- Blackguard
Skills: As above

Level 15 -- Blackguard
Skills: As above
Feats: Improved Critical: Rapier

Level 16 -- Blackguard
Skills: As above
STR 1

Level 17 -- Blackguard
Skills: As above

Level 18 -- Blackguard
Skills: As above
Feats: Toughness

Level 19 -- Blackguard
Skills: As above

Level 20 -- Blackguard
Skills: As above
STR 1

Level 21 -- Blackguard
Skills: As above
Feats: Great Strength I

Level 22 -- Blackguard
Skills: As above

Level 23 -- Blackguard
Skills: As above
Feats: Overwhelming Critical: Rapier

Level 24 -- Blackguard
Skills: As above
Feats: Devastating Critical: Rapier (BOOYAH!)
STR 1

Level 25 -- Pale Master
Skills: Lore 1, Listen 1, Persuade 1, SC 15

Level 26 -- Pale Master
Skills: Lore 1, Listen 1, Persuade 1, SC 1

Level 27 -- Pale Master
Skills: As above
Feats: Armor Skin

Level 28 -- Bard
Skills: Lore 1, SC 1, Tumble 23, UMD 13
STR 1

Level 29 -- Pale Master
Skills: Lore 1, Listen 1, Persuade 1, SC 1

Level 30 -- Blackguard
Skills: Discipline 6, Lore 1
Feats: Improved Knockdown

Level 31 -- Blackguard
Skills: Discipline 1, Lore 1
Feats: Epic Fiendish Servant

Level 32 -- Blackguard
Skills: As above
CHR 1

Level 33 -- Blackguard
Skills: Discipline 1, Lore 1
Feats: Improved Initiative

Level 34 -- Blackguard
Skills: As above
Feats: Epic Weapon Focus: Rapier

Level 35 -- Pale Master
Skills: Lore 1, Listen 10, SC 6

Level 36 -- Pale Master
Skills: Lore 1, SC 1
Feats: Superior Initiative
CHR 1

Level 37 -- Pale Master
Skills: As above
Feats: Energy Resist: Fire 1

Level 38 -- Pale Master
Skills: Persuade 10

Level 39 -- Pale Master
Skills: Listen 5, Persuade 5
Feats: Epic Spell (I picked Mage Armor)

Level 40 -- Pale Master
Skills: Whatever you have left, wherever you want
Feats: Epic Spell (Warding or Hellball)
CHR 1

Pros:
4 Attacks at Level 20
Dev Crit at Level 24
Good Naked AC
2 Epic Spells
Should be able to use/wear anything except Exotic Weapons

Cons:
Low HPs
Mediocre Saves (Each at about 25 or so)
Fair BAB
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"What do you fear most in the world?"
"The possibility that love is not enough."
-- Major Garland Briggs, Twin Peaks Looks a lot like my 'bad to the bone' build with a STR focus instad of a CHA one. It looks fairly solid. The big difference between the two is yours is offensively geared while mine is defensively. Looks like a lot of fun. As I think about it, it's pretty flexible too. One could change out the weapon, sub in two-weapon feats somewhere along the line, or even change Blackguard levels to CoT levels.
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"What do you fear most in the world?"
"The possibility that love is not enough."
-- Major Garland Briggs, Twin Peaks