Possibly the best prestige class in the game for Sorcerers, Bards, SCs, and Wizards

[ATHATH]

http://www.realmshelps.net/charbuild/classes/prestige/realms/spellsinger.shtml

Spellsong: Spellsingers can "lose" a prepared arcane spell in order to cast any arcane enchantment spell of one or more levels lower that is on their spell list. This works just as a cleric's spontaneous casting class feature. Arcane spells that do not need to be prepared can also be "lost" in this fashion, although spellsong simply grants the ability to. replace a spell slot with a lower-level arcane enchantment spell from the character's spell list. All spellsongs require verbal (singing) and somatic (playing an instrument) components, regardless of whether the spell was prepared or not. These components replace the spell's normal verbal, somatic, material, and focus components, but not any experience point costs or expensive material components.

The saving throw DC for spellsongs is equal to the caster's Cha modifier + the enchantment's level +2, regardless of whether the spell was originally prepared or not.
"SCs" in the title is short for "Sublime Chords", in case that wasn't clear.

Side note: Would the Spontaneous Divination ACF let a Wizard 5 qualify for Spellsinger?

[Venger]

yes, it would.

Did you have a question about the class, or want advice on a build, or something?

[Troacctid]

If you like Spellsinger, you'll probably like the Proteus feat from Exemplars of Evil, which offers a similar effect for illusion (glamer) spells, except they don't have to be on your class spell list.


Side note: Would the Spontaneous Divination ACF let a Wizard 5 qualify for Spellsinger?
No. You still need to prepare spells to use it.

[ATHATH]

If you like Spellsinger, you'll probably like the Proteus feat from Exemplars of Evil, which offers a similar effect for illusion (glamer) spells, except they don't have to be on your class spell list.
*eyes bulge*

Spontaneous Wizard, ho!

[ATHATH]

Question here: When a feat or class requires a certain caster level, will having a high enough caster level only for one specific spell (or a group of specific spells) do? What happens if I no longer have that spell prepared (or no longer have the spell slots needed to cast it)?

[Troacctid]

Question here: When a feat or class requires a certain caster level, will having a high enough caster level only for one specific spell (or a group of specific spells) do? What happens if I no longer have that spell prepared (or no longer have the spell slots needed to cast it)?
Generally, if a caster level boost applies only to a specific spell or group of spells, it applies only to that specific spell or group of spells; consequently, if you are using your caster level for anything other than casting that specific spell or group of spells, the bonus does not apply.

For example, the Storm Bolt feat says "you gain a +1 competence bonus to your caster level when casting electricity spells." This bonus applies only when casting electricity spells. Spelldancer's prerequisites are not electricity spells, so the bonus would not count.

[Venger]

Question here: When a feat or class requires a certain caster level, will having a high enough caster level only for one specific spell (or a group of specific spells) do? What happens if I no longer have that spell prepared (or no longer have the spell slots needed to cast it)?

This works. e.g. you have spell thematics and this nudges your cl up to what you need, you can still qualify. Casting it doesn't disqualify you any more than running out of 2nd level spell slots disqualifies you from a class whose prereq is "able to cast 2nd level spells." That would be really dumb.

[noce]

I don't get it, how can this be better than Dweomerkeeper, Anima Mage, Incantatrix, Sevenfold Veil, Shadowcraft Mage, Spelldancer?