Spectral Mage* (CR 7)

Medium Undead (Augmented Humanoid)
Alignment: Neutral evil
Initiative: +6 (+2 Dex, +4 Improved Initiative); Senses: darkvision 60 ft., Listen +2, and Spot +3

AC: 13 (+2 Dex, +1 natural), touch 13, flat-footed 11
Hit Dice: 5d12 (32 hp)
Fort +1, Ref +5, Will +5
Speed: 30 ft., fly 30 ft. (good)
Space: 5 ft./5 ft.
Base Attack +2; Grapple -
Attack: Incorporeal touch +4 melee
Full Attack: Incorporeal touch +4 melee
Damage: Paralysis
Special Attacks/Actions: Paralysis, spells
Abilities: Str -, Dex 14, Con -, Int 16, Wis 12, Cha 13
Special Qualities: Undead, incorporeal, corporeal manipulation, item link, madness, +2 turn resistance, unnatural aura, (5th-level human wizard)
Feats: Alertness; Blind-fight; Combat Reflexes; Greater Spell Focus (Evocation); Improved Initiative; Lightning Reflexes; Scribe Scroll; Spell Focus (Evocation); Spell Penetration
Skills: Concentration +9, Diplomacy +3, Hide +9, Intimidate +11, Knowledge (arcana) +7, Listen +2, Search +5, Spellcraft +11, and Spot +3
Advancement: 6-10 HD (Medium-size)
Climate/Terrain: Any land and underground
Organization: Solitary
Treasure/Possessions: As character

Source: Magic of Faerûn

The Fortitude save against this spectral mage's paralysis has a DC of 13.

Possessions: scroll of web, scroll of confusion, scroll of fireball (2), potion of cure moderate wounds, potion of cure serious wounds, bracers of armor +1, cloak of resistance +1. Because she is incorporeal, she cannot use her potion, bracers, or cloak.

Spells Prepared (4/4/3/1; base DC = 13 + spell level or 17 + spell level for evocation spells): 0 - dancing lights, detect magic, electric jolt, flare; 1st - endure elements, magic missile, silent image, sleep; 2nd - Aganazzar's scorcher, battering ram, web; 3rd - stinking cloud.

Spellbook: 0 - all from Player's Handbook plus electric jolt; 1st - endure elements, feather fall, identify, mage armor, magic missile, silent image, sleep, spider climb, Tenser's floating disk, true strike; 2nd - Aganazzar's scorcher, battering ram, cat's grace, continual flame, glitterdust, web; 3rd - dispel magic, fireball, stinking cloud, summon monster III.

This example uses a 5th-level human wizard as the base creature.

Augmented Subtype

A creature receives this subtype whenever something happens to change its original type. Some creatures (those with an inherited template) are born with this subtype; others acquire it when they take on an acquired template. The augmented subtype is always paired with the creature's original type. For example, a wizard's raven familiar is a magical beast (augmented animal). A creature with the augmented subtype usually has the traits of its current type, but the features of its original type. For example, a wizard's raven familiar has an animal's features and the traits of a magical beast.