Made some changes to WotC's Warlock. Let me know if I got anything wrong kay?
Class Skill Changes:
The warlock’s class skills (and the key ability for each skill) are as follows: Bluff, Concentration, Craft, Diplomacy, Disguise, Fly, Intimidate, Knowledge (the planes), Knowledge (religion), Sense Motive, Spellcraft, and Use Magic Device.
Class Ability Changes:
1st Detect magic, eldritch blast 1d6, invocation (least), pact bond
2nd Damage reduction 1/cold iron
3rd Deceive item, eldritch blast 2d6
4th Eldritch resilience 2
5th Energy resistance 5, eldritch blast 3d6
6th Invocation (least or lesser)
7th Damage reduction 2/cold iron or silver, eldritch blast 4d6
8th Eldritch resilience 3
9th Eldritch blast 5d6
10th Energy resistance 10
11th Damage reduction 3/cold iron, eldritch blast 6d6, Invocation (least, lesser, or major)
12th Eldritch resilience 4, Imbue item
13th Improved pact bond
14th Eldritch blast 7d6
15th Damage reduction 4/cold iron, Energy resistance 15
16th Eldritch resilience 5, invocation (least, lesser, major, or greater)
17th Eldritch blast 8d6
18th Greater pact bond
19th Damage reduction 5/cold iron
20th Eldritch blast 9d6, energy resistance 20
1st Detect magic, eldritch blast 1d6, invocation (least), pact bond
2nd Damage reduction 1/cold iron
3rd Deceive item, eldritch blast 2d6
4th Eldritch resilience 2
5th Energy resistance 5, eldritch blast 3d6
6th Invocation (least or lesser)
7th Damage reduction 2/cold iron or silver, eldritch blast 4d6
8th Eldritch resilience 3
9th Eldritch blast 5d6
10th Energy resistance 10
11th Damage reduction 3/cold iron, eldritch blast 6d6, Invocation (least, lesser, or major)
12th Eldritch resilience 4, Imbue item
13th Improved pact bond
14th Eldritch blast 7d6
15th Damage reduction 4/cold iron, Energy resistance 15
16th Eldritch resilience 5, invocation (least, lesser, major, or greater)
17th Eldritch blast 8d6
18th Greater pact bond
19th Damage reduction 5/cold iron
20th Eldritch blast 9d6, energy resistance 20
New Feature (Pact Bond):
Pact Bond (Su): A Warlock gains his or hers power from the “Pact Malevolos” or pact bond that he makes with either the Seelie Court of the Fey or a particular fiendish power of the Lower Planes (choose one at the beginning of starting off as a Level 1 Warlock). Not only does this give the Warlock his or her eldritch powers but the Warlock also gains the following abilities:
• Whenever a Warlock understands any words a fey or outsider with the evil subtype is saying regardless of what language it is using (as if the Warlock was under the effects of a continuous comprehend languages spell of a level equal to the Warlock’s class level).
• The Warlock gains a +1 luck or profane bonus to all saving throws against all spells and spell-like abilities cast members of either a fey or outsider with the evil subtype.
At 13th level, a Warlock’s pact bond improves so that he or she can now fully converse with a fey or outsider of the evil subtype as if he or she was affected by a continuous tongues spell of a level equal to the Warlock’s class level) as well as having his or hers luck (or profane) bonus increase to +2 instead of remaining at +1. Furthermore, at 18th level, a Warlock’s pact bond becomes so great that he or she can now communicate telepathically with a fey or outsider of the evil subtype as well as having his or hers luck (or profane) bonus increase to +3 instead of remaining at +2.
Pact Bond (Su): A Warlock gains his or hers power from the “Pact Malevolos” or pact bond that he makes with either the Seelie Court of the Fey or a particular fiendish power of the Lower Planes (choose one at the beginning of starting off as a Level 1 Warlock). Not only does this give the Warlock his or her eldritch powers but the Warlock also gains the following abilities:
• Whenever a Warlock understands any words a fey or outsider with the evil subtype is saying regardless of what language it is using (as if the Warlock was under the effects of a continuous comprehend languages spell of a level equal to the Warlock’s class level).
• The Warlock gains a +1 luck or profane bonus to all saving throws against all spells and spell-like abilities cast members of either a fey or outsider with the evil subtype.
At 13th level, a Warlock’s pact bond improves so that he or she can now fully converse with a fey or outsider of the evil subtype as if he or she was affected by a continuous tongues spell of a level equal to the Warlock’s class level) as well as having his or hers luck (or profane) bonus increase to +2 instead of remaining at +1. Furthermore, at 18th level, a Warlock’s pact bond becomes so great that he or she can now communicate telepathically with a fey or outsider of the evil subtype as well as having his or hers luck (or profane) bonus increase to +3 instead of remaining at +2.
New Feature (Eldritch Resilience):
Eldritch Resilience (Su): Beginning at 4th level, a Warlock knows the trick of eldritch resilience. Once per day, as a free action, he or she can enter a state that lasts for 2 minutes. While in this state, the warlock gains fast healing 2. At 8th level, a warlock’s eldritch resilience improves. When in his or hers eldritch resilience state, the Warlock gains fast healing 3. At 12th level, a warlock’s eldritch resilience improves to fast healing 4. At 16th level, a warlock’s eldritch resilience improves to fast healing 5.
Eldritch Resilience (Su): Beginning at 4th level, a Warlock knows the trick of eldritch resilience. Once per day, as a free action, he or she can enter a state that lasts for 2 minutes. While in this state, the warlock gains fast healing 2. At 8th level, a warlock’s eldritch resilience improves. When in his or hers eldritch resilience state, the Warlock gains fast healing 3. At 12th level, a warlock’s eldritch resilience improves to fast healing 4. At 16th level, a warlock’s eldritch resilience improves to fast healing 5.
Least Eldritch Essence Invocations:
Fatiguing Blast: Target must make Fortitude save or become fatigued.
Shakening Blast: Target must make Will save or become shaken.
Sickening Blast: Target must make Fortitude save or become sickened.
Fatiguing Blast: Target must make Fortitude save or become fatigued.
Shakening Blast: Target must make Will save or become shaken.
Sickening Blast: Target must make Fortitude save or become sickened.
Lesser Eldritch Essence Invocations:
Burning Blast: Blast deals fire damage and target must make Reflex save or catch fire.
Corrosive Blast: Blast deals acid damage and target must make a Reflex save or also take +1d6 points of acid damage in the following round.
Dazing Blast: Target must succeed of a Fortitude save or become dazed for 1 round.
Icy Blast: Blast deals cold damage and target must take Fortitude save or take –2 penalty to Dexterity.
Electric Blast: Blast deals electricity damage and if the target is wearing metal armor it must make Fortitude save or be stunned for 1 round.
Sonic Blast: Blast deals sonic damage and target must take Fortitude save or be deafened for 1 round.
Staggering Blast: Target must make Fortitude save or become staggered for 1 round.
Burning Blast: Blast deals fire damage and target must make Reflex save or catch fire.
Corrosive Blast: Blast deals acid damage and target must make a Reflex save or also take +1d6 points of acid damage in the following round.
Dazing Blast: Target must succeed of a Fortitude save or become dazed for 1 round.
Icy Blast: Blast deals cold damage and target must take Fortitude save or take –2 penalty to Dexterity.
Electric Blast: Blast deals electricity damage and if the target is wearing metal armor it must make Fortitude save or be stunned for 1 round.
Sonic Blast: Blast deals sonic damage and target must take Fortitude save or be deafened for 1 round.
Staggering Blast: Target must make Fortitude save or become staggered for 1 round.
Major Eldritch Essence Invocations:
Confusing Blast: Target must make a Will save or be confused for 1 round.
Frightening Blast: Target must make a Will save or be frightened for 1 round.
Nauseating Blast: Target must make a Fortitude save or be nauseated for 1 round.
Penetrating Blast: Blast ignores spell resistance.
Repelling Blast: Target must make a Reflex save or be knocked back 25 feet.
Confusing Blast: Target must make a Will save or be confused for 1 round.
Frightening Blast: Target must make a Will save or be frightened for 1 round.
Nauseating Blast: Target must make a Fortitude save or be nauseated for 1 round.
Penetrating Blast: Blast ignores spell resistance.
Repelling Blast: Target must make a Reflex save or be knocked back 25 feet.
Greater Eldritch Essence Invocations:
Negative Blast: Target must make a Fortitude save or gain one negative level.
Blinding Blast: Target must make a Reflex save or be permanently blinded.
Deafening Blast: Target must make a Reflex save or be permanently deafened.
Negative Blast: Target must make a Fortitude save or gain one negative level.
Blinding Blast: Target must make a Reflex save or be permanently blinded.
Deafening Blast: Target must make a Reflex save or be permanently deafened.
Least Blast Shape Invocations:
Eldritch Spear: Blast range increases to 250 feet.
Eldritch Blow: You may channel your Eldritch Blast through a melee attack.
Eldritch Spear: Blast range increases to 250 feet.
Eldritch Blow: You may channel your Eldritch Blast through a melee attack.
Lesser Blast Shape Invocations:
Eldritch Selection: If you modify your Blast to target a specific area, you may choose to have your Blast ignore 1 target per every 2 Warlock levels you possess.
Eldritch Circle: Blast affects everyone in a 30 ft. radius.
Eldritch Selection: If you modify your Blast to target a specific area, you may choose to have your Blast ignore 1 target per every 2 Warlock levels you possess.
Eldritch Circle: Blast affects everyone in a 30 ft. radius.
Major Eldritch Essence Invocations:
Eldritch Thrust: Blast takes the shape of a 120 ft. line.
Eldritch Cone: Blast takes the shape of a 60 ft. cone.
Eldritch Thrust: Blast takes the shape of a 120 ft. line.
Eldritch Cone: Blast takes the shape of a 60 ft. cone.
Greater Eldritch Essence Invocations:
Eldritch Chain: Blast affects one enemy then jumps to affect one additional enemy per every 2 Warlock levels you possess.
Eldritch Chain: Blast affects one enemy then jumps to affect one additional enemy per every 2 Warlock levels you possess.
Least Invocations:
Beguiling Influence: Gain a +1 bonus to Bluff, Diplomacy, and Intimidate checks.
Breath of Fog: Use fog cloud as the spell.
Earthen Grasp: Use earthen grasp as the spell.
Entropic Warding:You leave no trail and prevent being tracked by scent and you are affected by a protection from arrows spell.
Fickle Fate: Target enemy within 60 ft. gets –1 to all saves.
Leaps and Bounds: Gain a +1 bonus to Bluff, Diplomacy, and Intimidate checks.
Miasmic Cloud You create a 20 ft. by 20 ft. cloud of mist that grants concealment and fatigues those who enter unless they make a Fortitude save.
Night Vision: Gain the ability to see in darkness or magical darkness.
See the Unseen: Use see invisibility
as the spell.
Shattering Speech Use shatter as the spell.
Spiderwalk: Use spider climb as the spell.
Beguiling Influence: Gain a +1 bonus to Bluff, Diplomacy, and Intimidate checks.
Breath of Fog: Use fog cloud as the spell.
Earthen Grasp: Use earthen grasp as the spell.
Entropic Warding:You leave no trail and prevent being tracked by scent and you are affected by a protection from arrows spell.
Fickle Fate: Target enemy within 60 ft. gets –1 to all saves.
Leaps and Bounds: Gain a +1 bonus to Bluff, Diplomacy, and Intimidate checks.
Miasmic Cloud You create a 20 ft. by 20 ft. cloud of mist that grants concealment and fatigues those who enter unless they make a Fortitude save.
Night Vision: Gain the ability to see in darkness or magical darkness.
See the Unseen: Use see invisibility
as the spell.
Shattering Speech Use shatter as the spell.
Spiderwalk: Use spider climb as the spell.
Lesser Invocations:
Charming Influence: Use charm person as the spell.
Cursing Gaze: Use bestow cure as the spell.
Arise Undead: Use animate dead as the spell.
Flight of Fancy: Gain fly speed equal (with good maneuverability) to your normal movement speed.
Flee the Scene: Use dimension door as the spell and leave behind a major image as the spell.
Swarming Darkness: Use darkenss as the spell which is then immediately affected by a summon swarm.
Stony Grasp: Use stony grasp as the spell.
Become Unseen: Use greater invisibility as the spell.
Wall of Gloom: Use wall of gloom as the spell
Charming Influence: Use charm person as the spell.
Cursing Gaze: Use bestow cure as the spell.
Arise Undead: Use animate dead as the spell.
Flight of Fancy: Gain fly speed equal (with good maneuverability) to your normal movement speed.
Flee the Scene: Use dimension door as the spell and leave behind a major image as the spell.
Swarming Darkness: Use darkenss as the spell which is then immediately affected by a summon swarm.
Stony Grasp: Use stony grasp as the spell.
Become Unseen: Use greater invisibility as the spell.
Wall of Gloom: Use wall of gloom as the spell
Major Invocations:
Chilling Tentacles: Use evard’s black tentacles and deal +7d6 extra cold damage to creatures in the area
Devour Magic: Use targeted greater dispel magic as the spell and gain temporary hit points based on the level of spells successfully dispelled.
Enervating Shadow: Gain total concealment in dark areas and impose a -4 Strength penalty on adjacent living creatures.
Tenacious Plague: Use insect plague as the spell but the summoned locust swarm deals damage as a magic weapon.
Wall of Perilous Flame: Create a wall of fire but half the damage results from supernatural power.
Warlock’s Call: Use sending as the spell.
Chilling Tentacles: Use evard’s black tentacles and deal +7d6 extra cold damage to creatures in the area
Devour Magic: Use targeted greater dispel magic as the spell and gain temporary hit points based on the level of spells successfully dispelled.
Enervating Shadow: Gain total concealment in dark areas and impose a -4 Strength penalty on adjacent living creatures.
Tenacious Plague: Use insect plague as the spell but the summoned locust swarm deals damage as a magic weapon.
Wall of Perilous Flame: Create a wall of fire but half the damage results from supernatural power.
Warlock’s Call: Use sending as the spell.
Greater Invocations:
Bound and Gagged: One small or medium target within 60 ft. must make a reflex save or be rendered helpless by manacles and silenced by a cloth gag.
Foresight: Use foresight as the spell and communicate telepathically with a close range target of the effect.
Path of Shadows: Use shadow walk and heal at double the rate of natural healing.
Retributive Invisibility: Use greater invisibility as the spell that deals 9d6 damage the the being who dispels it.
Word of Changing: Use baleful polymorph as the spell.
Bound and Gagged: One small or medium target within 60 ft. must make a reflex save or be rendered helpless by manacles and silenced by a cloth gag.
Foresight: Use foresight as the spell and communicate telepathically with a close range target of the effect.
Path of Shadows: Use shadow walk and heal at double the rate of natural healing.
Retributive Invisibility: Use greater invisibility as the spell that deals 9d6 damage the the being who dispels it.
Word of Changing: Use baleful polymorph as the spell.
Does your version only get four invocations, or are you assuming the normal rate of invocation acquirement? The chart is not clear, unless I'm just missing something.