Random concept - ardent + warlock
Hit Die: d6
Class Skills: The arlock’s class skills are Autohypnosis, Bluff, Concentration, Disguise, Intimidate, Jump, Knowledge (psionics), Knowledge (the planes), Knowledge (religion), Profession, Sense Motive, Psicraft and Use Psionic Device.
Skill Points per Level: 2 + Int modifier.
Saves: Fort poor, Ref poor, Will good.
1 Psychic blast, First mantle (ability), Talented
2 Detect psionics, First mantle (powers)
3 Deceive item
4 Second mantle (powers)
5 Damage reduction 2/cold iron
6 Second mantle (ability)
7 Psychic resilience 2
8 Augmentation pool
9 Third mantle (powers)
10 Damage reduction 4/cold iron
11 Third mantle (ability)
12 Psychic resilience 4
13 Imbue item
14 Fourth mantle (powers)
15 Damage reduction 6/cold iron
16 Fourth mantle (ability)
17 Psychic resilience 6
18 Improved Augmentation pool
19 Fifth mantle (powers and ability)
20 Damage reduction 8/cold iron
Psychic Invocations (Ps): An arlock manifests powers, but in an unusual fashion. Each of his powers is a psi-like ability with a manifester level equal to half his class level (minimum 1), usable at will. He cannot use a power if its ML is too low to manifest it normally. If the power has an XP or GP cost, it retains that cost. If an arlock takes levels in a PrC which improves manifester level, his effective class level for determining the ML of his powers is increased instead. Likewise, the Practiced Manifester feat improves his effective class level by up to 4. An arlock may treat his invocations as spell-like abilities for the purposes of feats such as Maximise Spell-like Ability.
Psychic Blast (Ps): At 1st level an arlock can use energy ray as a psychic invocation.
Talented: An arlock gains power points equal to his class level.
Mantles (Ps): An arlock gains access to mantles (adding their powers to his invocations known) at the levels shown in the table above.
Augmentation Pool: At 8th level, an arlock may expend power points while using an invocation to increase its manifester level by +1 per point. Alternatively he may apply a metapsionic feat with a cost equal to the expended pp, though this requires him to expend his psionic focus. He may split pp between multiple effects (eg. an arlock expending 6pp could increase an invocation's ML by 2 and Maximise it), but cannot expend more pp on this ability in a single use than half his class level. In other words, you cannot raise an invocation's manifester level above your class level in this manner.
At 18th level he does not need to expend his psionic focus when applying metapsionic feats in this manner.