Thaumaturge

At 1st level, when using forbidden lore to augment a spell or sphere effect, the thaumaturge may use an invocation to cause the affected targets to gain 1 temporary hit point per thaumaturge level for 1 round per thaumaturge level.

At 1st level, when using forbidden lore to augment a spell or sphere effect, the thaumaturge may use an invocation to cause the affected targets to become sickened for 1 round (Fortitude negates).

At 1st level, the thaumaturge may reroll a failed Knowledge check. The thaumaturge may only use this ability once for any given Knowledge check.

At 3rd level, when using forbidden lore to augment a spell or sphere effect, the thaumaturge may use an invocation to grant himself a bonus to attack rolls equal to his forbidden lore bonus for a number of rounds equal to his casting ability modifier.

At 3rd level, when using forbidden lore to augment a spell or sphere effect, the thaumaturge may use an invocation to grant himself a dodge bonus to AC equal to his forbidden lore bonus for a number of rounds equal to his casting ability modifier.

At 7th level, if the thaumaturge suffers backlash when using forbidden lore, he may use an invocation to pass the penalty off to another creature within 30 feet. If that creature is unwilling, they are allowed a Will save to negate this effect. On a successful save, the thaumaturge suffers the effect of the backlash as normal.

At 7th level, before attempting a saving throw, the thaumaturge may use an invocation to add his forbidden lore bonus to the roll.

At 11th level, the thaumaturge may use an invocation to add his forbidden lore bonus to the caster level of a spell-completion or spell-trigger magic item he is wielding for 1 round. This bonus only functions while the item is being wielded by the thaumaturge.

At 11th level, when the thaumaturge suffers backlash from using forbidden lore, he may use an invocation to empower himself. He gains a bonus to attack rolls, saving throws, and a dodge bonus to AC equal to his forbidden lore bonus for a number of rounds equal to his casting ability modifier. This does not negate the penalty gained through the backlash itself.

At 15th level, if the thaumaturge succeeds at a saving throw against an attack that has a reduced effect on a successful save, he may use an invocation to negate the effect entirely.

At 15th level, the thaumaturge may use an invocation to gain use of a single magic talent of his choice for 1 minute. He must meet the prerequisites (if any) and he can gain a base sphere he does not already possess with this ability. A thaumaturge may only have one use of flexible caster active at any one time; using this invocation again replaces the previous use.

At 19th level, when the thaumaturge is reduced to 0 hit points or fewer, the thaumaturge may use two of his remaining invocations to instead be reduced to 1 hit point. Effects that kill the thaumaturge outright without dealing hit point damage are not affected by this ability.

Aura moderate Universal; CL 9th
Slot none; Price 15,000 gp; Weight 1/2 lbs.

These crystals come in countless combinations of colors and shapes, but each glows from within with a faint light that illuminates the user’s square to dim light if it is darker in their square. Any magical darkness effect (or similar power) automatically succeeds in snuffing this light, but the crystal’s light can only be covered by other effects, not permanently extinguished, as long as the crystal itself exists. When a creature with the invocations class feature fails at something they used an invocation on (such as failing a saving throw after using defensive invocation on it), an invoker’s crystal gains one charge. The GM is the final arbiter of what counts as failure. A creature with the invocations class feature can expend five charges from an invoker’s crystal when they use an invocation to double the bonus for that invocation. This works on invocations that have variable, numeric benefits, but not on those with fixed effects (such as empowered resistance). An invoker’s crystal can store up to 9 charges.

Construction Requirements
Craft Apparatus, Mana sphere, creator must have the invocations class feature; Cost 7,500 gp

Aura moderate Divination; CL 7th
Slot none; Price 9,000 gp; Weight 2 lbs.

This tightly-wrapped scroll comes in a case of cold iron decorated with delicate silver filigree. When a creature with the occult knowledge class feature carries this scroll, it whispers into their thoughts and allows them to take 10 on all Knowledge and Spellcraft checks, even during times they would not normally be able to.

Construction Requirements
Craft Apparatus, Divination sphere, creator must have the occult knowledge class feature; Cost 4,500 gp

Prerequisite: Invocations class feature.

Benefit: Increase the number of times per day you may use invocations by 2. You may take this feat multiple times. The effects stack.

Prerequisite: Basic Magic Training or casting class feature.

Benefit: Gain an additional sphere or a talent from a sphere you possess. You may take this feat multiple times. The effects stack.

Prerequisite: Spell pool.

Benefit: Your spell pool total increases by 2. You may gain this feat multiple times. The effects stack.

Prerequisites: War sphere, forbidden lore class feature.

Benefit: Whenever you successfully use forbidden lore with a totem, all allies within the totem receive a morale bonus equal to your base forbidden lore bonus to one of the following, chosen by you when you create the totem: attack rolls, damage rolls, AC, saving throws, ability checks, skill checks, magic skill checks, or CMB and CMD. Bonuses to your forbidden lore bonus do not increase this bonus. Multiple totems can give allies multiple bonuses, but two similar bonuses do not stack.

Prerequisites: Forbidden lore class feature, any item creation feat.

Benefit: Choose one item creation feat that you possess. Add your forbidden lore bonus to your caster level or MSB when meeting prerequisites or determining how powerful of an enchantment you may place upon an item.

Prerequisites: Conjuration sphere, forbidden lore class feature.

Benefit: Your companions gain a circumstance bonus to attack rolls and skill checks equal to your forbidden lore bonus.

Prerequisites: Death sphere, forbidden lore class feature.

Benefit: Add your forbidden lore bonus to your caster level when determining the number and power of undead creatures you may control at any one time through the Death sphere.

Prerequisites: Fallen Fey sphere (Summon Fairy (fey-blessing)), forbidden lore class feature.

Benefit: Add your forbidden lore bonus to your caster level when determining the total Hit Dice of fey creatures you may have summoned at one time.

^{Source: Baron’s Uncanny Gateway}

You are exceptionally skilled at prying into dangerous or forbidden information.
Prerequisites: Knowledge (arcana) 3 ranks, Knowledge (dungeoneering) 3 ranks, or Knowledge (planes) 3 ranks; Study sphere.

Benefits: You can begin a theory as a free action whenever you successfully identify the effects of a curse or identify a creature as an aberration. If you do so, the theory begins with one notion.

You add the following methods of gaining a notion to your theories:
+You or an ally successfully uses an Occult Skill Unlock to find information about the subject of your theory.
+The subject of your theory causes a creature you perceive (including yourself) to take strain damage.

You add the following breakthroughs to your theories:

• Breakthrough: When you would take strain damage or ability damage to one of your mental ability scores, you can spend any amount of notions to reduce the amount of damage taken by 1 per notion spent (to a minimum of 0).
• Breakthrough: Whenever you cast a spellcrafted spell or technique that you do not meet the prerequisites for, you may spend any number of notions. For every notion spent, the chance of a mishap is reduced by 5% to a minimum of 0%.
• Breakthrough: Whenever you would suffer backlash from the forbidden lore class feature or a similar thaumaturge class feature, you may spend 3 notions to negate the backlash.

Prerequisites: Spellcraft 10 ranks, Use Magic Device 10 ranks or any Knowledge skill 10 ranks; occult knowledge class feature.

Benefit: You may take 10 with any Knowledge, Spellcraft, or Use Magic Device check, regardless of stress or other situations where taking 10 would otherwise be impossible.

^{Source: Expanded Spheres: Baron's Lost Apocrypha}

Prerequisites: Forbidden Lore or Strain class feature

Benefit: When you use Forbidden Lore or strain, you may choose to gain a smaller bonus than normal from these class features, to a minimum of +1 to caster level or base attack bonus.

Whenever you use Forbidden Lore and the sum of your normal caster level (before applying implement bonuses and any other temporary CL increases) and your forbidden lore bonus would not exceed your character level +½ your maximum forbidden lore bonus, you do not have any chance of backlash on the forbidden lore use. Whenever you use Strain and your total base attack bonus does not exceed your character level +½ your maximum strain bonus, you do not become fatigued.

Prerequisite: Casting class feature.

Benefit: Choose a sphere. You gain a +1 bonus to saving throw DCs for all abilities from that sphere. You may take this feat multiple times. The effects do not stack. Each time it is gained, apply this benefit to a different sphere.

Prerequisites: Mana sphere, forbidden lore class feature.

Benefit: You may create a tainted manabond as a manabond. When an ally that you have a tainted manabond with uses a sphere ability, you may allow them to benefit from your forbidden lore class feature as a free action even if it is not your turn. A creature may refuse this benefit if they so wish. If backlash occurs, it affects only you, but the ability still fails if triggering backlash would cause it to fail. A sphere ability can only benefit from forbidden lore once.

Prerequisites: War sphere, forbidden lore class feature.

Benefit: You must spend a spell point to create a totem of the darkest aberration. When an ally within this totem uses a sphere ability, you may use an immediate action to allow them to benefit from your forbidden lore class feature. If backlash occurs, it affects only you, but the ability still fails. A sphere ability can only benefit from forbidden lore once.

Prerequisites: War sphere, forbidden lore class feature.

Benefit: You must spend 2 spell points to create a totem of the deepest curse. The area of this totem is desecrated with the aberrations you commune with. Enemies within this totem suffer the effects you currently suffer from due to any backlash you have accumulated.