Here we go...
King-Wraith, elven 5th-level fighter/5th-level wizard/5th-level eldritch knight
Medium Undead (Augmented Humanoid)
Hit Dice: 15d12 (97 hp)
Initiative: +5
Speed: 20 ft. in full plate (4 squares); base speed 30 ft.
Armor Class: 25 (+1 Dex, +10 +2 full plate, +4 deflection), touch 15, flat-footed 24
Base Attack/Grapple: +12/+18
Attack: +2 greatsword +20 melee (1d8+11/19-20 plus 1 Con drain)
Full Attack: +2 greatsword +20/+15 melee (1d8+11/19-20 plus 1 Con drain)Space/Reach: 5 ft./5 ft.
Special Attacks: Constitution drain, create spawn, energy drain gaze (DC 21), fear aura (DC 21), spell-like abilities (CL 15th, DC 14 + spell level), spells
Special Qualities: Damage reduction 15/good, darkvision 60 ft., eternal undeath, immunity to cold, electricity, polymorph, and mind-affecting attacks, incorporeal defense, lifesense 60 ft., low-light vision, spell resistance 20, summon familiar, +8 turn resistance, undead traits, unnatural aura
Saves: Fort +5, Ref +5, Will +8
Abilities: Str 22, Dex 18, Con -, Int 22, Wis 14, Cha 19
Skills: Listen +4, Move Silently +8, Search +2, Spot +4 (includes -5 armor check penalty) plus 24 fighter skill ranks plus 20 wizard skill ranks plus 20 20 eldritch knight skill ranks
Feats: Alertness (B), Improved Initiative (B), Scribe Scroll (B), plus 6 normal feats plus 4 fighter bonus feats plus 1 wizard bonus feat
Environment: Any
Organization: Solitary, retinue (wraith-king plus 2-12 wraiths and 1 nightmare), or tomb (wraith-king plus 4-24 wraiths)
Challenge Rating: 18
Treasure: Double standard (includes +3 full plate and +2 greatsword)
Alignment: Always lawful evil
Advancement: By character class
Level Adjustment: +8
Wizard Spells Prepared: (CL 9th; +16 ranged touch)
5th—2;
4th—3;
3rd—4;
2nd—6;
1st—6;
0—4.