Knights of the Oblivion Storm
Prestige Classes for the three orders:Order of the Lightening, Order of the Rain, and Order of the Thunder.
Order of the Lightening
The Order of the Lightening is the Spellcasting order of the Knights of the Oblivion Storm. It advances in power in it’s magic, while learning how to strike quickly and suddenly.
Requirements:
Alignment:Lawful Evil or Neutral Evil
Feats:Quicken Spell, Improved Inititive, Weapon Focus(Ray, Touch, or Energy Missile)
Skills:Spellcraft 8 ranks, Concentration 8 ranks, Move Silently 4 ranks.
Special:Must join the Knights of the Oblivion Storm.
Spellcasting:Must be able to cast 3rd-level spells spontaneously without the aid of a patron deity.
Table
Lvl BaB F R W Special Spells
1 +0 +0 +2 +2 Spell Sneak+1d6
2 +1 +0 +3 +3 Striking Init.+1 +1 SPD
3 +1 +1 +3 +3 Lesser Quicken +1 SPD
4 +2 +1 +4 +4 +1 SPD
5 +2 +1 +4 +4 Striking Init.+2 +1 SPD
6 +3 +2 +5 +5 Quicken Skilled
7 +3 +2 +5 +5 Spell Sneak +2d6 +1 SPD
8 +4 +2 +6 +6 Striking Init.+3 +1 SPD
9 +4 +3 +6 +6 Major Quicken +1 SPD
10 +5 +3 +7 +7 Auto Quicken
Abilities:Spell Sneak(Ex):Can sneak attack with any spell that his Weapon Focus counts in.
Striking Initiative(Ex):Gets that big a bonus to Initiative. Stacks with Improved Initiative.
Lesser Quicken(Su):Can turn a spell of up to 2 levels lower than the maximum he can cast into a move-equivalent action. Spell counts as 1 level higher.
Quicken Skilled(Su):Quicken Spell only uses a slot of only 2 levels higher.
Major Quicken(Su):Can turn a spell of any level into a move-equivalent action. Spell counts as 1 level higher.
Auto Quicken(Su):All spells of atleast 3 levels lower then his maximum count as Move-equivalent actions.
Skills:Alchemy, Balance, Bluff, Concentration, Craft, Disguise, Escape Artist, Gather Information, Hide, Intimidate, Knowlage(Arcana), Knowlage(Religion), Listen, Move Silently, Profession, Scry, Sense Motive, Spellcraft, Tumble.
Skill Points:4+int modifier.
Order of the Rain
Members of the Order of the Rain are, to put it bluntly, spies and rogues. The Order of the Rain gives information to the rest of the Knights of the Oblivion Storm, and specializes in disguise and espionage.
Requirements:
Alignment:Neutral Evil
Feats:Skill Focus(Disguise), Skill Focus(Bluff), Expertise.
Skills:Disguise 8 ranks, Bluff 8 ranks, Hide 8 ranks, Move Silently 8 ranks, Disable Device 4 ranks, Spellcraft 2 ranks.
Special:Sneak Attack +2d6, Evasion, must be a member of the Oblivion Storm.
Lvl BaB F R W Special
1 +0 +0 +2 +0 Sneak Attack +1d6
2 +1 +0 +3 +0 Subterfuge +2
3 +2 +1 +3 +1 Sneak Attack +2d6
4 +3 +1 +4 +1 Subterfuge +4
5 +3 +1 +4 +1 Sneak Attack +3d6
6 +4 +2 +5 +2 Subterfuge +6
7 +5 +2 +5 +2 Sneak Attack +4d6
8 +6 +2 +6 +2 Thousand Faces
9 +6 +3 +6 +3 Sneak Attack +5d6
10 +7 +3 +7 +3 Master of Intrigue
Sneak Attack:Like normal.
Subterfuge(Ex):Knights of the Rain are trained in disguise and subterfuge. They gain a +2 bonus on Disguise, Bluff, Hide, Sense Motive and Move Silently checks at 2nd level. This bonus increases to +4 at 4th level and +6 at 8th level.
Thousand Faces(Su):At 6th level, the Knight of the Rain gains the extrordinary ability to change his appearance at will, as if using the spell Alter Self.
Master of Intrigue(Ex):At 10th level, The Knight of the Rain has become the ultamite spy. He gains a +10 bonus on Disguise, Bluff, Sense Motive, Move Silently and Hide checks. This stacks with all other modifiers(Other then Subterfuge).
Skills:Appraise, Balance, Bluff, Climb, Concentration, Craft, Decipher Script, Diplomacy, Disable Device, Disguise, Escape Artist, Forgery, Gather Information, Hide, Innuendo, Intimidate, Intuit Direction, Jump, Listen, Move Silently, Open Lock, Profession, Read Lips, Ride, Scry, Search, Sense Motive, Speak Language, Spellcraft, Spot, Swim, Tumble, Use Magic Device, Use Rope.
Skill Points/Level:8+int.
Order of the Thunder
The Order of the Thunder is a order of warriors and combatants that combine their fighting skills with a mix of other talents. They are the fighting order of the Knights of the Oblivion Storm.
Requirements
Base Attack Bonus +5
Feats:Dodge, Medium armor proficiency, martial weapon proficiency(All), Power Attack, Expertise, Lightening Reflexes, Iron Will, Cleave.
Skills:Jump 4 ranks, Climb 4 ranks, Disguise 2 ranks, Bluff 2 ranks, Move Silently 2 ranks, Hide 2 ranks.
Lvl BaB F R W Special
1 +1 +2 +0 +0 Sneak Attack +1d6
2 +2 +3 +0 +0 Spell-Like Ability
3 +3 +3 +1 +1 Evasion
4 +4 +4 +1 +1 Spell-Like Ability
5 +5 +4 +1 +1 Sneak Attack +2d6
6 +6 +5 +2 +2 Spell-Like Ability
7 +7 +5 +2 +2 Uncanny Dodge(Dex)
8 +8 +6 +2 +2 Spell-Like Ability
9 +9 +6 +3 +3 Sneak Attack +3d6
10 +10 +7 +3 +3 Valour, Spell-Like Ability
Sneak Attack:It’s a Sneak Attack.
Spell-Like Ability:The member Order of the Thunder chooses a spell to be able to use as a spell-like ability with no chance of Arcane Spell Failure one spell that a sorceror or mystic of 4 levels* lower would be able to cast. That becomes a spell-like ability usable once per day. He may pick another one at every even-numbered level. Also, at any level he would gain a spell-like ability, he may switch one out into any spell of a spell level up to 1 lower then the maximum he could cast.
(*:Not class levels)
Evasion:As Rogue ability.
Uncanny Dodge(Dex):Uncanny Dodge(Dex bonus to AC) as Rogue ability.
Valour(Ex):The member of the Order of the Thunder has become a true champion, and as such becomes immune to fear. He also gains a +2 bonus on attack & damage rolls against Clerics, Wizards of High Sorcery, Knights of Neraka and Knights of Solamnia.
So, whadda ya think?
Whoa! You've got a ton of great ideas, but may I make a suggestion? Use a little formatting here. Throwing all your words and lines together makes this incredibly hard to read. For examples of what I mean, check what I did here:
http://boards1.wizards.com/showthread.php?t=324568&page=1
I want to read this through and help give critique and feeback, but it's incredibly difficult to make sense of it right now.
They sound like they would be more aligned with the powers of Chaos.
Heck no. THEY ARE ALIGNED WITH NO POWER! NONE! They have nothing to do with any god, alive or dead. 
Just seems like they have would have a common cause with Chaos (i.e. the destruction of everything). No big deal if they don't.
They are not. They want to destroy the gods and all organizations created by the gods. They do not want to destroy krynn, the human race, the minotaur isles ETC(Although they would want to destroy the kender race.... :D)
I was hopeing to find out if these were really unbalanced...
Uh, dude? Reference my post above. If you want something to be taken seriously, I don't think it's all that outlandish to try and present it in a more digestible format. You ran everything together, didn't use bolds or italics where appropriate, etc. Formatting goes a long way.
Clean it up some and I'm sure you'll get tons of responses. I'm not trying to criticize or be mean about it... just offering some advice that I've found to be crucial in getting work on the boards taken seriously. :D
Peace.
That class gets two good saves, way more class skills than a wizard/sorceror, more skill points, extra sneak attack damage (which an arcane trickster has to pay for by losing a few levels of wiz/sorc by having to be a rogue first, which means he *needs* the sneak attack damage), and he only loses 2 levels of spells? Heck only one if he just goes up to 9th level in the prestige class.
I dont personally think you realize just how unbalancing the added boost of your quickened spells. While some people may argue sorcerors should be able to use quicken (understandably), you are just adding way more to it by giving these sorcerors the ability to quicken, and in a way better way than any wizard could match. While yes prestige classes are supposed to be a little better, they shouldnt mop up the floor. Yes if you ambushed this sorceror, you might kill him first. But a sorceror who can practically make endless quickened spells is just wrong. Hell when he runs out of lower level spells that he quickened, he could just use higher level slots to cast quickened lower level spells. To me, and this is my opinion, this thing is not just broken, its been smashed to peices.
If I am reading the sorceror prestige class right, when it is 20th level(10th level Sorceror, 10th level PrC), any 6th level spell and less can be cast as a Quickened spell? So as long as they don't move, they get to cast two spells a round? Seems pretty unbalancing. Even if you dumbed it down by making it a move action, its still too much. A normal wizard would really only have a few quickened spells, and they pay for it by not having more powerful spells. This guy gets to just do it by spending a move action each round?
That class gets two good saves, way more class skills than a wizard/sorceror, more skill points, extra sneak attack damage (which an arcane trickster has to pay for by losing a few levels of wiz/sorc by having to be a rogue first, which means he *needs* the sneak attack damage), and he only loses 2 levels of spells? Heck only one if he just goes up to 9th level in the prestige class.
I dont personally think you realize just how unbalancing the added boost of your quickened spells. While some people may argue sorcerors should be able to use quicken (understandably), you are just adding way more to it by giving these sorcerors the ability to quicken, and in a way better way than any wizard could match. While yes prestige classes are supposed to be a little better, they shouldnt mop up the floor. Yes if you ambushed this sorceror, you might kill him first. But a sorceror who can practically make endless quickened spells is just wrong. Hell when he runs out of lower level spells that he quickened, he could just use higher level slots to cast quickened lower level spells. To me, and this is my opinion, this thing is not just broken, its been smashed to peices.
Personaly, i disagree. At 20th level, i am giving a sorceror the ability to cast quickened spells as a 21st level character(Auto Quicken epic feat). I have powered it down(2 dice not 4 of sneak attack, 1 less caster level) and i don't see him as unfair now. He is getting an ability 1 level lower than he could have otherwise, and pays for it with 3 points of caster level. Heck if he just went sorceror/rogue(19/2) he'd be getting just about the same thing only with more of a casting punch. He's good, but not 'smashed to peices'. Also note that his sneak attack is conditional based on the kind of spell he uses. I think that you fail to understand that 20th level is one level lower than 21st.
Thanks!
Presenting...the Knights of the Storm.