Quick Warlock Update

[Kane0]

Being a reasonably big fan of warlocks, it recently occurred to me that I haven't actually done a standard warlock 'fix', and since then I haven't been able to sleep properly. So here we are, a quick Warlock fix that tweaks a few problems he has and leaves as much of the original intact as possible.

Proficiencies: As original Warlock
HP: As original Warlock
Skills/level and Class skills: As original Warlock

Level	BAB	Fort	Ref	Will	Special	Invocations
1	+0	+0	+0	+2	Eldritch Blast (1d6), Invocations (Least + Cantrips)	1
2	+1	+0	+0	+3	Bonus Feat	2
3	+2	+1	+1	+3	Eldritch Blast (2d6), Damage Reduction 1/Cold Iron	3
4	+3	+1	+1	+4	Deceive Item	3
5	+3	+1	+1	+4	Eldritch Blast (3d6), Energy Resistance 5	4
6	+4	+2	+2	+5	Bonus Feat, Invocations (Lesser)	5
7	+5	+2	+2	+5	Eldritch Blast (4d6), Damage Reduction 2/Cold Iron	6
8	+6/+1	+2	+2	+6	Fiendish Resilience 1	6
9	+6/+1	+3	+3	+6	Eldritch Blast (5d6)	7
10	+7/+2	+3	+3	+7	Bonus Feat, Energy Resistance 10	8
11	+8/+3	+3	+3	+7	Eldritch Blast (6d6), Damage Reduction 3/Cold Iron, Invocations (Greater)	9
12	+9/+4	+4	+4	+8	Imbue Item	9
13	+9/+4	+4	+4	+8	Eldritch Blast (7d6)	10
14	+10/+5	+4	+4	+9	Bonus Feat	11
15	+11/+6/+1	+5	+5	+9	Eldritch Blast (8d6), Damage Reduction 4/Cold Iron, Energy Resistance 15	12
16	+12/+7/+2	+5	+5	+10	Fiendish Resilience 2, Invocations (Dark)	12
17	+12/+7/+2	+5	+5	+10	Eldritch Blast (9d6)	13
18	+13/+8/+3	+6	+6	+11	Bonus Feat	14
19	+14/+9/+4	+6	+6	+11	Eldritch Blast (10d6), Damage Reduction 5/Cold Iron	15
20	+15/+10/+5	+6	+6	+12	Fiendish Resilience 5, Energy Resistance 20	15

Class Abilities
Eldritch Blast:
The first and foremost power of a warlock, Eldritch Blast is a ray magical energy dealing 1d6 damage +1d6 per two caster levels after 1st + Cha bonus.
An Eldritch Blast is an attack action made against a single target with a range of Short (25' + 5' per 2 CL). Unlike most rays, Edritch Blast does not target Touch AC.
An Eldritch Blast has an equivalent spell level equal its damage dice -1 (minimum 0, maximum 9), but otherwise functions as an invocation and a weaponlike spell. As such it is subject to spell resistance and modifiers to caster level such as the Spell Penetration and Practiced Spellcaster feats.
An Eldritch Blast can be modified with up to one Essence (Prefix) and/or one Shape (Suffix). Using a modified Eldritch Blast is a standard action, and as such cannot be used as an iterative attack like an unmodified Eldritch Blast can.

Invocations:
Invocations are spell like abilities usable at will, which usually mimic spells. Invocations require a standard action to use and some have durations of 24 hours, and cannot be subject to metamagic feats. Feats, abilities and modifiers that affect Spell Like Abilities and Caster Level (Such as Spell Penetration, Ability Focus, Practiced Spellcaster and Quicken SLA) function normally for Invocations.
Save DCs for all invocations (including Eldritch Blast Shapes and Essences) are equal to 10 + 1/2 Warlock level + Cha modifier.
At level 1 a Warlock chooses 2 + Cha modifier cantrips (taken from the Sorc/Wiz spell list) to gain as invocations (max 6). If a Warlock's Charisma modifier changes after these cantrips are selected the change is not retroactive.
All least grade invocations count as 2nd level spells for the purposes of interacting with dispel magic attempts, spellcraft skill checks, spell bsorbtion, ect. Lesser invocations similarly count as 4th level spells, Greater 6th level and Dark 8th.
A Warlock can qualify as a spontaneous arcane spell caster for the purposes of Feats, Abilities, Prestige classes, etc and has a caster level equal to his Warlock level. More specific requirements may require a DM's consent.

Bonus Feat:
The Warlock gains a bonus feat. This bonus feat must directly affect the Warlocks Eldritch Blast (such as Weapon Focus (Ray)), Invocations (such as Extra Invocation) or spellcasting (such as Arcane Mastery). The Warlock must still meet the prerequisites for this feat.

Damage Reduction:
The Warlock gains damage reduction of 1/Cold Iron. This Damage Reduction increases by 1 every 4 Warlock levels after 1st.

Deceive Item:
The Warlock can take 10 on Use Magic Device checks, even if distracted or threatened.

Energy Resistance:
The Warlock selects two energy types from: Fire, Cold, Acid, Electricity and Sonic. The Warlock gains Energy Resistance 5 to those two energy types. This Energy Resistance increases by 5 for every 5 levels after 5.

Fiendish Resilience:
The Warlock gains fast healing 1 when below half his maximum Hit Points. This Fast Healing increases to 2 at level 16 and 5 at level 20.

Imbue Item:
The warlock can substitute a Use Magic Device check in place of a required spell when crafting items. the DC for an Arcane spell is 15 + spell level and the DC for a Divine spell is 25 + spell level. If this check succeeds he is treated as having cast that spell; If he fails he cannot complete the item though he does not expend XP or GP, he has simply stopped progressing in the creation. He cannot attempt to replicate that spell again via use of this ability until he gains a new level.


Notable changes
- Changes to EB. It goes up to 10d6 and is an iterative attack versus AC. Range has also been changed.
- More invocations. You get a total of 4 least, 4 lesser, 4 Greater and 3 dark at level 20.
- Some finer points about EB and Invocations have been straightened out for simplicity. Some things might still be ambiguous though.
- Gains 5 Bonus feats which can net you additional invocations and other important spellcasting feats.
- Fiendish resilience functions like a dragon shaman's fast healing aura.
- Altered DR and table progression