Making spells (buffs) last longer without using persist

[Agita]

If that's the case, the multiplication really adds up on the ScM/Circle Magic build.  CL50 X 2 X 2 X 2 = 400 X duration
day/level lasts over a year, hours/level lasts for over 2 weeks, 10 min/level lasts for almost 3 days.  min/lvl lasts over 6 hours.  I guess now we need 1 or two more auto-extending PrCs to get it to truly persistant for min/lvl.  Hmm.

Suel Arcanamach and Abjurant Champion both get auto-extend as well, though the former only applies to SA spells and the latter applies only to Abjurations.

[Endarire]

Ice-dweller Dragonborn Primordial Incarnate construct half-minotaur aquatic warforged

...and a partridge in a pear tree.

What're the LA and stat mods on this thing?

[Prime32]

Ice-dweller Dragonborn Primordial Incarnate construct half-minotaur aquatic warforged

...and a partridge in a pear tree.

What're the LA and stat mods on this thing?

Well, a Dragonborn Primordial Incarante construct Half-minotaur Warforged would be LA +0. I'm not sure about aquatic and ice-dweller.

[Rebel7284]

SA can be abused by dipping 3 levels into it, taking silent image, and then versatile spellcaster to heighten it by sacking high level wizard spells.  The caster level suffers a bit due to lack of red wizard greater circle, but you now get duration X 16.

Edit: Just looked up Sudden Extend.  You can stack it with Extend Spell.  so 1/day duration X 32.

[The_Mad_Linguist]

Ice-dweller Dragonborn Primordial Incarnate construct half-minotaur aquatic warforged

...and a partridge in a pear tree.

What're the LA and stat mods on this thing?

Well, a Dragonborn Primordial Incarante construct Half-minotaur Warforged would be LA +0. I'm not sure about aquatic and ice-dweller.

Each of them is LA + 0

[Emy]

Edit: Just looked up Sudden Extend.  You can stack it with Extend Spell.  so 1/day duration X 32.

You can apply a sudden metamagic feat to a spell that has already been enhanced by a regular metamagic feat. However, the sudden metamagic feat cannot be of the same type as the regular metamagic feat (for instance, you can't use Sudden Extend on a spell that has already been extended).

Hm, I didn't realize they were also printed in CArc. Cru may be right, but it's debatable so I'm [ s ] ing this comment.

[Rebel7284]

From Complete Arcane, page 83. 

Benefit: Once per day, you can apply the effect of the
Extend Spell feat to any spell you cast without increasing
the level of the spell or specially preparing it ahead of time.
You can still use Extend Spell normally if you have it.

[Sinfire Titan]

Rebel's right. CArc has the most recent version of the feat, and that overrides the Minis Handbook's printing of the feat.

[cru]

You can still use Extend Spell normally if you have it.

This could also mean: If you have extend spell, you can use it normally (i.e., increasing the spell level, preparing ahead, etc.) to extend other spells (but not this one).

[Emy]

Having just reviewed the relevant feats in Complete Arcane, I continue to believe I was right about the bit in MiniHB. Unless there is a more recent printing of this:

You can apply a sudden metamagic feat to a spell that has already been enhanced by a regular metamagic feat. However, the sudden metamagic feat cannot be of the same type as the regular metamagic feat (for instance, you can't use Sudden Extend on a spell that has already been extended).

it still defines the generic sudden metamagic feat effect. All of the sudden metamagic feats, in both MiniHB and CArc, include this line.

You may still use the ______ Spell feat normally, if you have it.

None of the sudden metamagic feats were changed from MiniHB to CArc, as far as I can tell. If it were referring to using a sudden metamagic feat plus the equivalent normal metamagic feat on the same spell, the MiniHB would then contradict itself. If Cru is correct, no contradiction arises.

Therefore, the last line of each sudden metamagic feat is simply clarifying that it does not affect the use of any standard metamagic feats.