Best party spell to have last 24 hours

[Minosis]

What is the best spell of 4th level or lower that you can think of to have lsat 24 hours. I am playing an incantrix and through a mixture of feats and spell can use the persistant spell on my fellow spellcasters to make their spells last 24 hours. I have another mage and a cleric in the party so I can choose from either.

Current suggestions include:

Haste
Elation
Blessed Aim
Inproved Invisiblility(for the rogue)

there are more but I am looking for more, I play in forgotten realms so spells from there are okay, but my GM is weird certain of the complete books are not. Please tell me where the spell comes from.

Thanks,

 

[Jack Simth]

A few SRD spells to consider:
Sor/Wis
Heroism, Greater
Shapechange
Time Stop (Need a few hours to rest up and prepare a completely different spell list? Wait - that could be very, very bad; which time frame does it measure?)
Mage's Sword, any of the offensive Hands, or the Cleric's Spiritual Weapon
Invisibility, Mass (but only under some circumstances)
Spell Turning (especially if you can Maximize it as well)
True Seeing
Globe of Invulnerability
Magic Jar
Etherial Jaunt
Any of the Mass stat buffs (eagle's splendor, owl's wisdom, bear's strength, et cetera)
Analyze Deowmer
Fly

Cleric (anything that is also unde the Sor/Wiz list is ignored here)
Implosion
Shield of Law, Cloak of Chaos, Holy Aura, or Unholy Aura, as appropriet
Hero's Feast (although you can also simply Extend it for the same benifit)
Spell Resistence
Death Ward

Edit: Oh, wait - 4th or lower. Well, that cuts out most my suggestions....

 

[Thanee]

Ahem... Persistent Spell has some requirements on the spell to be made persistent.

Bye
Thanee

 

[Taloras]

Yep. Persistent Spell has the requirement of the spell has to have a personal or fixed range (so only you can recieve the spell) such as Comprehend Languages or Detect Magic. And no instantaneous spells. So anything that you can cast on someone else is right out.