It *is* a nice template. And it can be slapped together pretty quick. Here's a demon for you:
Epic Succubus
Medium Outsider (Chaotic, Extraplanar, Evil)
Hit Dice: 6d8+ 6 +133 (166 hp)
Initiative: +11
Speed: 60 ft. (12 squares), fly 100 ft. (average)
Armor Class: 35 (+6 Dex, +5 insight, +14 natural), touch 21, flat-footed 29
Base Attack/Grapple: +6/+17
Attack: Claw +22 melee (1d6+16)
Full Attack: 2 claws +22 melee (1d6+16)
Space/Reach: 5 ft./5 ft.
Special Attacks: Energy drain, spell-like abilities, summon demon
Special Qualities: Damage reduction 10/epic-cold iron or epic-good, darkvision 60 ft., fast healing 5, immunity to electricity and poison, resistance to acid 15, cold 15, and fire 15, resistance to sonics 5, spell resistance 28, telepathy 100 ft., tongues
Saves: Fort +16, Ref +16, Will +17
Abilities: Str 23, Dex 23, Con 23, Int 26, Wis 24, Cha 36
Skills: Bluff +29, Concentration +20, Diplomacy +22, Disguise +27* (+29 acting), Escape Artist +20, Hide +20, Intimidate +29, Knowledge (any one) +22, Listen +29, Move Silently +20, Search +22, Spot +29, Survival +12 (+14 following tracks), Use Rope +12 (+13 with bindings)
Feats: Automatic Quicken spell-like ability (x3), Dodge, Mobility, Persuasive
Environment: A chaotic evil-aligned plane
Organization: Solitary
Challenge Rating: 17
Treasure: Standard
Alignment: Always chaotic evil
Advancement: -
Level Adjustment: -
A succubus is 6 feet tall in its natural form and weighs about 125 pounds.
Combat
Epic succubi, like their lesser cousins, are not warriors. They flee combat whenever they can. If forced to fight, they can attack with their claws, but they prefer to turn foes against one another. All succubi use their polymorph ability to assume humanoid guise, and can maintain this deception indefinitely. Their preferred tactic when dealing with heroes is to feign friendship and create an opportunity to be alone with one of them, whereupon the succubus applies her life-draining kiss. Succubi are not above taking on the role of a damsel in distress when encountered within a dungeon. An epic succubus’s natural weapons, as well as any weapons it wields, are treated as chaotic-aligned and evil-aligned epic weapons for the purpose of overcoming damage reduction.
Energy Drain (Su): A succubus drains energy from a mortal it lures into some act of passion, or by simply planting a kiss on the victim. If the target is not willing to be kissed, the succubus must start a grapple, which provokes an attack of opportunity.
The kiss or embrace of an epic succubus bestows two negative levels. The kiss also has the effect of a suggestion spell, asking the victim to accept another kiss from the succubus. The victim must succeed on a DC 31 Will save to negate the effect of the suggestion. The DC is 31 for the Fortitude save to remove a negative level. These save DCs are Charisma-based.
Spell-Like Abilities: At will—
charm monster (DC 32),
detect good, detect invisible, detect thoughts (DC 30),
ethereal jaunt (self plus 50 pounds of objects only),
fly, greater dispel magic, polymorph (humanoid form only, self only, no limit on duration),
suggestion (DC 31),
greater teleport (self plus 50 pounds of objects only). Caster level 22nd. The save DCs are Charisma-based. By virtue of the epic succubus's feats, 1 spell-like ability may be used each round as a free action; a second ability may be used as a standard action.
Summon Demon (Sp): Once per day an epic succubus can attempt to summon 10 vrocks with a 30% chance of success. This ability is the equivalent of a 8th-level spell.
Tongues (Su): A succubus has a permanent tongues ability (as the spell, caster level 22nd). Succubi usually use verbal communication with mortals.
Skills: Succubi have a +8 racial bonus on Listen and Spot checks.
*While using her polymorph ability, a succubus gains a +10 circumstance bonus on Disguise checks.
****
Note: I added a +5 insight bonus to grapple checks. There is also the +5 bonus from increased strength. Caster level bonus is an insight bonus. Saving throw bonus is a luck bonus. Not that it matters, but even so.
The attacks of the succubus count as epic weapons as well as chaotic and evil. And I think any creatures summoned should also have the epic template.
