Does a Psychic with the Improved Eldritch Heritage feat for the Psychic Bloodline get any benefit from Undercasting Prodigy?

Does a Psychic with the Improved Eldritch Heritage feat for the Psychic Bloodline get any benefit from Undercasting Prodigy?

Undercasting Prodigy says:

Starting at 9th level, whenever you gain a new level of spells, you automatically replace any psychic bloodline spells that can be undercast with the highest-level version you can cast in your list of spells known. For example, at 9th level, you would replace mind thrust I, id insinuation I, and ego whip I with mind thrust IV, id insinuation III, and ego whip II, respectively, as spells known.

If a psychic knows the bloodline spells from choosing them as a psychic and not from the bloodline, can they still replace lower level spells with higher level spells when able?

Warpriest + Paragon Surge + Eldritch Heritage [ Arcane Bloodline ] in Pathfinder

I have this PC that came up with this combo: Half-elf Warpriest cast Paragon Surge to select Eldritch Heritage [ Arcane Bloodline ] to have the bonded item, so he can cast any spell from the cleric spell list. Is this legal? Does de Warpriest counts as knowing all the spells in the spell list?

Would a 6th level Aasimar Celestial Patron Warlock be able to add twice their charisma mod to eldritch blast?

Aasimar (at least Scourge and Protector), get an ability that allows them to add their level in radiant damage to any damage roll they make, and the Celestial Warlock gets to add their charisma modifier to any radiant damage they do.

Additionally, if that warlock has Agonizing Blast, that also makes their eldritch blast do additional damage equal to the character’s charisma modifier.

Would all three features stack (once per turn) on an eldritch blast that hits, so that it does extra damage equal to twice the warlock’s charisma mod+level?

If a wizard has a familiar and the feat Eldritch Heritage for the Arcane bloodline, what level do you use to determine the powers of the familiar?

If a wizard has a familiar and the feat Eldritch Heritage for the Arcane bloodline, what level do you use to determine the powers of the familiar?

The bloodline grants:

…you gain an arcane bond, as a wizard equal to your sorcerer level. Your sorcerer levels stack with any wizard levels you possess when determining the powers of your familiar or bonded object.

Eldritch Heritage says:

For purposes of using that power, treat your sorcerer level as equal to your character level – 2.

If a wizard is level 10, then it’s effective sorcerer level is 8. Does this mean the level used for determining the familiar’s abilities is 18?

Eldritch blast on a non-warlock

The Complete Arcane warlock’s signature invocation is eldritch blast, a ray of arcane power that grows in damage with warlock levels. The warlock can further modify the eldritch blast using specialized invocations known as blast shapes and eldritch essences.

Numerous feats and prestige classes also require eldritch blast, or require that your eldritch blast deal a certain amount of damage (which roughly corresponds to warlock level plus any prestige classes that progress warlock invocations).

Is there any way to get eldritch blast, or at least qualify for things that require eldritch blast, without actually having any levels in the warlock class? I am guessing “no,” but it would be nice to be surprised. I don’t care about any other warlock class features, including the other invocations, in this context, just eldritch blast.

Any material Wizards of the Coast published for the 3.5e revised edition of D&D, as well as any 3.5e content from Dragon or Dungeon magazines, are acceptable. Content from other systems, such as Pathfinder or other editions of D&D, is not acceptable. Seriously, this is not a 5e question, I know in 5e I could take Magic Initiate but this is a different system where that feat does not exist.

How do prepared and known spells work for a multiclassed Eldritch Knight 7 / Wizard 2-3? [duplicate]

This question already has an answer here:

  • If I multiclass into 2 or more spellcasting classes, how do I determine my known/prepared spells? 1 answer

I generally understand the multiclassing spell rules, but multiclassing a 1/3rd-caster class with a wizard is making me scratch my head. I know I have 5 spells for EK at level 7, and 2 cantrips, both from the same list. I also have Level 2 spell slots at level 7 on EK, so I know I can cast a level 2 spell as an EK.

However, if I take only 2 levels of Wizard, can I learn any extra level 1 spells? Or am I stuck being unable to prepare level 2 spells I learn as a wizard?

I assume I can’t even choose level 2 spells for my known wizard spells, can I? Because I can’t prepare them. If I had, say, Wizard 3, and thus had the ability to prepare level 2 spells as a wizard, and I didn’t prepare them, could I then cast them unprepared using my Eldritch Knight spell slots?

EK 7 / Wizard 2 should look like: 8 level 1 spells chosen for the wizard levels, 4 level 1 spells and 1 level 2 spell chosen for the EK levels. There’s no way to learn level 2 spells as a wizard until I’ve taken level 3 in wizard; is that correct?

Can I cast unprepared wizard spells using my Eldritch Knight spell slots? Or can I only cast the spells learned specifically from my EK dips without them being prepared?