Blood Arcanist + Psychic Bloodline's Undercasting Prodigy

[Artemis Moonstar]

Undercasting Prodigy:

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.

So, given how an Arcanist casts... Is this a useless ability?

[David knott 242]

That ability is useless to anyone who has the Psychic bloodline but not that bloodline's bonus spells.

[Viondar]

Well... Yes.

And even worse. As recently pointed out in this thread of mine, the arcana doesn't even work for non-sorcerers, it seems.

Really a sad thing, and probably (hopefully) not RAI.

[David knott 242]

But which non-sorcerers would even get the arcana for any sorcerer bloodline?

[Gisher]

David knott 242 wrote:

But which non-sorcerers would even get the arcana for any sorcerer bloodline?

Blood Arcanist.

[Viondar]

Or a multiclass sorcerer :)

[Kaboogy]

David knott 242 wrote:

But which non-sorcerers would even get the arcana for any sorcerer bloodline?

Most Arcanas (in fact I can't think of any exceptions beyond Psychic) give benefits that affect all castings, Sorcerer or not. So any class dipping a level would.

[Viondar]

Well... The esoteric dragon bloodline arcana allows you to do something when selecting spells known.

That should work for arcane prepared spellcasters: wizards, magi, arcanists, and witches (because they do add spells known to their repetoire when learning them), but it certainly won't work for divine prepared spellcasters: clerics, druids, shamans, rangers, and paladins.