Cult of Steel
Devoted to the Steel Lord, a powerful fiend on the plane of Acheron, this cult is devoted to the quest for personal power.  The cult draws those who wish to increase their personal toughness through the discipline of steel. It consists of two orders, the will of steel, which guides the cult and is made up of spellcasters, and the disciples of steel, who are the fighting force of the group.

Will of Steel 
Those of the will of steel devote themselves to increasing the power of their arcane or divine spellcasting as well as their resistance to enemy casters.  Clerics, sorcerers, and wizards make up the bulk of the order.
Hit Dice: d8
Prerequisites: Knowledge (religion): 8 ranks
                     
Feats: Iron Will, Spell Focus (any)
                    Spellcasting: Able to cast either 3rd level arcane or divine spells.
                    
Alignment: Lawful evil or lawful neutral.
Skills:
The Will of Steel�s class skills are Alchemy (Int), Concentration (Con), Craft (Int), Diplomacy (Cha), Heal (Wis), Knowledge (Arcana), Knowledge (Religion), Profession (Wis), Scry (Int), and Spellcraft (Int).
     Skill points per level: 2 + Int modifier

Level   Attack   Fort Ref Will     Class ability                       Spell per Day
1             +0       +2    +0   +2      Greater Spell Focus                +1 level of existing class
2             +1       +3    +0   +3      Arcane Defense                     +1 level of existing class
3             +1       +3    +1   +3      +1 natural armor, Spell Focus +1 level of existing class
4            +2        +4    +1   +4      Arcane Defense                     +1 level of existing class
5            +2        +4    +1   +4      +2 natural armor, Spell Focus +1 level of existing class

Class Features
All of the following are class features of the will of steel prestige class.
    
Weapon and Armor Proficiency: The will of steel is proficient in light, medium, and heavy armor, simple weapons, and shields.
    Spells per Day: An will of steel continues her magical training as she gains new abilities.  The character continues to gain new spells per day and new spells known as if she had gained a level in her spellcasting class.  She does not however gain any other benefits of the spellcasting class.
    Greater Spell Focus: At 1st level, the will of steel gains the Greater Spell Focus feat for a school that he has Spell Focus for.
    Arcane Defense: A 2nd level will of steel gains a +2 bonus to saving throws against a school of magic that he has the Spell Focus feat for.  He gains another bonus (for a different school) at 4th level.
    
Spell Focus: At 3rd and 5th level, the will of steel gains the Spell Focus feat for another school of magic.
    
Natural Armor (Ex): At 3rd level, the will of steel gains a +1 natural armor bonus to AC. This increases to +2 at 5th level.
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