Note: I found this, and in the event that it was someone else's hard work that made it, the original copy of this was found at http://www.duchastel.com/~tld/arcanum/rpg/HM3.html.
Dragon King (Prestige Class)
The most evil and powerful defilers learn how to coninue on down their road of power, but their current form is not capable of continuing on. If they wish to continue to get more powerful, they must transform into a form that can handle it, and for defilers, that form is the dragon.
As they progress through the levels of this prestige class, the defiler becomes less and less human and more and more draconic.
Alignment: Any
• Race: Elf, except for Drow and Half-Elves
Class Skills: The High Mage's class skills are Alchemy (Int), Concentration (Con), Craft(Int), Knowledge (Int), Profession (Wis), Scry (Int), Search (Int), Spellcraft (Int), Spot (Int).
Weapon and Armor Proficiency: High Mages gain no proficiency in any weapon or armor.
Skill Points per level: 2 + Int modifier
Table: The High Mage
Avangion (Prestige Class)
The Avangion prestige-class is shrouded in mystery, a rumored transformation of only the most powerful Preservers. There is only one Avangion in Athas, and he certainly isn't advertising. Nevertheless, through epic adventuring, the most powerful of Preservers might come across rumors of the ritual necessary to begin the transformation into such a creature.
Unlike most prestige-classes, this one requires a powerful ritual spell, enhanced by psionic power, that must be learned and then cast in order to take the first level of Avangion. From that point on, this Preserver Metamorphosis spell must be re-cast for each new level in Avangion.
Alignment: Any non-evil
• Race: Human
Class Skills: Alchemy (Int), Bluff (Cha), Concentration (Con), Craft (Int), Disguise (Cha), Knowledge (any))(Int), Profession (any)(Wis), Psicraft (Int), Remote View (Int), Scry (Int, exclusive), Sense Motive (Wis), Spellcraft (Int).
Weapon and Armor Proficiency: No new weapon or armor proficiencies.
Skill Points per level: 2 + Int modifier
Table: The Avangion
Table: The Avangion CLASS FEATURES
All of the following are class features of the High Mage prestige class.
View Magic: All High Mages, by their very close affinity with the Weave, can detect magic in a manner akin to seeing. In effect, High Mages view the Weave and the physical world at the same time.
Illusion Resistance: By using the Weave to view the world around them, High Mages develop an ability to see through illusion/phantasm spells. They receive a +4 save bonus to see through or resist illusions/phantasms.
Improved Counterspell: Grants the benefits of the feat by the same name.
Spell Power +2: This ability increases the DC for saving throws against the High Mage's arcane spells and caster level checks for her arcane spells to overcome spell resistance by +2. This stacks with other Spell Power abilities.
Reactive Counterspell: Grants the benefits of the feat by the same name.
High Magic: A High Mage learns how to perform the rituals of High Magic by tapping directly into the parts of the Weave that are in all elves. The major drawback of using the Weave in this manner is that it clashes with casting arcane magic in the normal sense. If a High Mage intends to perform a ritual of High Magic during a ten-day, she cannot memorize any spells during that time. If spells were cast or memorized, the High Mage must meditate for a full ten-day before she can again perform High Magic. This stricture also applies to the use of spell scrolls though not rings, wands, and other magic devices.
Hit Die: d4
Requirements:
• Spellcasting: Ability to cast 9th level arcane spells
• Feats: Skill Focus (Spellcraft), Endurance, Cooperative Magic
• Spellcraft: 20 ranks
• Concentration: 20 ranks
• Knowledge (Arcana): 20 ranks
• Special: Must be taught how to perform High Magic.
Class Level
BAB
Fort
Ref
Will
Special
1
+0
+0
+0
+2
View Magic, High Magic
2
+1
+0
+0
+3
Illusion Resistance
3
+1
+1
+1
+3
Improved Counterspell
4
+2
+1
+1
+4
Spell Power +2
5
+2
+0
+0
+4
Reactive Counterspell
Hit Die: None (Epic Levels Only)
Requirements:
• Spellcasting: Ability to cast 9th level arcane spells
• Feats: any 5 Metamagic Feats, any 3 Metapsionic Feats
• Epic Feats: Epic Spellcasting (Arcane), Psionic Enhancement
• Spellcraft: 20 ranks
• Concentration: 20 ranks
• Knowledge (Arcana): 20 ranks
• Special: Must not have used Defiling techniques for the last 5 levels. Must successfully develop and cast the Preserver Metamorphosis Epic spell.
Class Level
Land Speed
Flight Speed
Dex
Wis
Cha
Natural Armor
SR
Special
1
30'
--
+1
+1
+2
+2
15
Magic Creature, Spell-like Abilities, Ageless, +1 Bonus Spell/Psionic Level
2
30'
--
+2
+2
+4
+4
17
5/+1 Dmg. Reduction, +1 Bonus Spell/Psionic Level
3
20'
20', poor
+3
+3
+6
+6
19
+1 Bonus Spell/Psionic Level
4
20'
30', poor
+4
+4
+8
+8
21
10/+1 Dmg. Reduction, +1 Bonus Spell/Psionic Level
5
10'
40', average
+5
+5
+10
+10
23
Incapable of Physical attacks, +1 Bonus Spell/Psionic Level
6
0'
50', average
+6
+6
+12
+12
25
15/+2 Dmg. Reduction, +1 Bonus Spell/Psionic Level
7
0'
60', good
+7
+7
+14
+14
27
+1 Bonus Spell/Psionic Level
8
0'
70', good
+8
+8
+16
+16
29
20/+2 Dmg. Reduction, Aura 90', +1 Bonus Spell/Psionic Level
9
0'
80', perfect
+9
+9
+18
+18
31
Aura 150', +1 Bonus Spell/Psionic Level
10
0'
90', perfect
+10
+10
+20
+20
33
Quasi-Diety, 25/+3 Dmg. Reduction, Aura 200', +1 Bonus Spell/Psionic Level
Table: Rituals per Ten-Day
Class
Level Solitude Complement Myriad
1 1 - -
2 2 - -
3 2 1 -
4 3 2 -
5 3 2 1
Table: Rituals Known
Class
Level Solitude Complement Myriad
1 3 - -
2 4 - -
3 5 3 -
4 6 4 -
5 7 5 3
Level
Appearance
1-2
Roughly human appearance, light eyes, features, white hair, metallic tint skin.
3
Wings (20 ft wingspan), silver eyes, and glittery skin.
4
No hair, webbed fingers and toes, and arms and torso, 25-foot wingspan.
5
30 foot wings, thin and willowy frame, arms and legs mostly fused
6
No land movement, 40-foot wings, arms and legs fused (legs to each other, arms to wings).
7
10'
8
Surrounded by an aura of color, 65-foot wingspan.
9
80-foot wingspan.
10
90-foot wingspan, largest aura

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Elven High Mage Original (until I get the tables to work properly)